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Journal articles on the topic 'Aromatic Carbamates'

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Published: 6 September 2023

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1

Tietze, Lutz F., Heiko J. Schuster, J. Marian von Hof, Sonja M. Hampel, Juan F. Colunga, and Michael John. "Atropisomerism of Aromatic Carbamates." Chemistry – A European Journal 16, no. 42 (September 30, 2010): 12678–82. http://dx.doi.org/10.1002/chem.201001047.

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2

Vincendon, Marc. "Scleroglucan derivatives: Aromatic carbamates." Journal of Polymer Science Part A: Polymer Chemistry 37, no. 16 (August 15, 1999): 3187–92. http://dx.doi.org/10.1002/(sici)1099-0518(19990815)37:16<3187::aid-pola16>3.0.co;2-j.

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3

Wilshire, JFK. "The Phthalimidomethyl Rearrangement." Australian Journal of Chemistry 43, no. 11 (1990): 1817. http://dx.doi.org/10.1071/ch9901817.

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The discovery of a new acid-catalysed monodentate N → C aromatic rearrangement, namely the phthalimidomethyl rearrangement, is reported. In this rearrangement, discovered during the reaction of N-hydroxymethylphthalimide with certain alkyl N-(4-nitrophenyl)carbamates in concentrated sulfuric acid solution, the phthalimidomethyl group migrates from its initial location on the nitrogen atom of the carbamate function to a carbon atom of the nitrophenyl group. Evidence, provided by an appropriate 'crossover' experiment, indicates that the rearrangement is intermolecular. Hindered rotation about the N(carbamoyl)-aryl bond of the N-phthalimidomethyl derivatives of both ethyl and methyl N-(2,4-dinitrophenyl)carbamate is reported.
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4

Rojas-Buzo, Sergio, Pilar García-García, and Avelino Corma. "Zr-MOF-808@MCM-41 catalyzed phosgene-free synthesis of polyurethane precursors." Catalysis Science & Technology 9, no. 1 (2019): 146–56. http://dx.doi.org/10.1039/c8cy02235f.

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5

Yamagami, C., T. Sai, and N. Takao. "13C N.M.R. Spectra of ortho-Substituted Phenyl N,N-Dimethyl-Carbamates and N-Methyl Carbamates." Australian Journal of Chemistry 40, no. 12 (1987): 2005. http://dx.doi.org/10.1071/ch9872005.

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We measured 13C nuclear magnetic resonance spectra of O-substituted phenyl N,N- dimethyland N-methyl- carbamates and compared the results with those for the corresponding m- and p-substituted derivatives. The additivity relationship on the basis of the substituent chemical shift for monosubstituted benzenes ( scsphx ) did not hold well because of the ortho effect. However, the scs of C2(ipso), C3(ortho) and C5(para) was correlated excellently with scsphxX . Dual substituent parameter (DSP) analyses of the scs of C5 and the carbonyl carbon in the fixed side chain showed that correlation was very good for C5 but moderate for C=O. These observations suggested that the X substituent lay in almost the same plane as the aromatic ring, whereas the OCONMe2 group may have changed its conformation somewhat. In O-substituted derivatives, the carbon nucleus that is directly attached to the aromatic ring (γ to the oxygen; OCONMe2)had a pronounced upfield shift relative to the corresponding m- and p-substituents by 4-5 ppm . This phenomenon was explained by the γ-effect caused by the oxygen atom.
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6

Mayer, Szabolcs, Dominika Mária Herr, Nóra Nagy, Viktória Donkó-Tóth, Péter Keglevich, Márton Weber, Miklós Dékány, and László Hazai. "Synthesis and In Vitro Anticancer Evaluation of Chrysin Containing Hybrids and Other Chrysin Derivatives." Periodica Polytechnica Chemical Engineering 67, no. 2 (May 23, 2023): 316–36. http://dx.doi.org/10.3311/ppch.21919.

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Chrysin, a well-known naturally occurring flavonoid having several biological effects including antiproliferative activity, was coupled with different pharmacophore structures. Coupling was carried out with spacers of different lengths and types. Structures selected for hybrid formation were amines, cyclic amino acid esters, and (hetero)aromatic compounds. In addition, vindoline, which is a Vinca alkaloid containing an indole skeleton, was also used. The alkylation of amines in the presence of carbonate base resulted in an interesting carbamate side product formation beside the expected amine. We also present the detailed structure elucidation of the carbamates. The in vitro anticancer activities of the synthesized derivatives were examined against 60 human tumor cell lines in National Cancer Institute (NCI, USA).
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7

VELIKORODOV, A. V., T. N. MAKSIMOVA, and V. B. MOCHALIN. "ChemInform Abstract: Reaction of Dichlorocarbene with Aromatic Carbamates." ChemInform 25, no. 38 (August 19, 2010): no. http://dx.doi.org/10.1002/chin.199438131.

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8

Kim, Hee-Kwon, and Tien Tan Bui. "Lanthanum(III) Trifluoromethanesulfonate Catalyzed Direct Synthesis of Ureas from N-Benzyloxycarbonyl-, N-Allyloxycarbonyl-, and N-2,2,2-Trichloroethoxycarbonyl-Protected Amines." Synlett 31, no. 10 (March 6, 2020): 997–1002. http://dx.doi.org/10.1055/s-0040-1707991.

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A novel lanthanum triflate mediated conversion of N-benzyl­oxycarbonyl-, N-allyloxycarbonyl-, and N-trichloroethoxycarbonyl-­protected amines into nonsymmetric ureas was discovered. In this study, lanthanum triflate was found to be an effective catalyst for preparing various nonsymmetric ureas from protected amines. A variety of protected aromatic and aliphatic carbamates reacted readily with various amines in the presence of lanthanum triflate to generate the desired ureas in high yields. This result demonstrated that this novel lanthanum triflate catalyzed preparation of ureas from Cbz, Alloc, and Troc carbamates can be employed for the formation of various urea structures.
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9

Du, Xiu-Jiang, Qiang Bian, Hong-Xue Wang, Shu-Jing Yu, Jun-Jie Kou, Zhi-Peng Wang, Zheng-Ming Li, and Wei-Guang Zhao. "Design, synthesis, and fungicidal activity of novel carboxylic acid amides represented by N-benzhydryl valinamode carbamates." Org. Biomol. Chem. 12, no. 29 (2014): 5427–34. http://dx.doi.org/10.1039/c4ob00744a.

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A series of valinamide carbamate derivatives were designed and synthesized by introducing substituted aromatic rings into valinamide carbamate leads. Bioassays showed that some title compounds exhibited very good fungicidal activity.
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10

Li, Qinghe, Peixue Wang, Shimin Liu, Yuqing Fei, and Youquan Deng. "Catalytic degradation of polyurea: synthesis of N-substituted carbamates with CuO–ZnO as the catalyst." Green Chemistry 18, no. 22 (2016): 6091–98. http://dx.doi.org/10.1039/c6gc01884j.

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N-Substituted carbamates were successfully synthesized in two consecutive steps with the generation of H2O as the only side product over CuO–ZnO, i.e. synthesis of PUs by fixation of CO2 with aliphatic and aromatic diamines and the degradation of PUs subsequently.
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11

Venkatachalam, TK, P. Samuel, IV Kourinov, and FM Uckun. "Synthesis and Anti-HIV Activity of Carbamates of Antiviral Agent Stavudine." Antiviral Chemistry and Chemotherapy 13, no. 5 (October 2002): 289–97. http://dx.doi.org/10.1177/095632020201300504.

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An efficient synthesis of carbamate analogues of the NRTI compound stavudine, has been achieved in five steps starting from commercially available thymidine. The synthesis involves conversion of thymidine into stavudine followed by condensation with carbaimidazole derivative obtained from various aromatic and heterocyclic amines in dimethylformamide solvent. The analogues thus obtained were further purified by crystallization to furnish analytically pure products. Examination of biological activity of these carbamate derivatives of stavudine showed that they inhibited HIV replication only at micro-molar concentrations.
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12

Bartolucci, Cecilia, Jure Stojan, Qian-sheng Yu, Nigel H. Greig, and Doriano Lamba. "Kinetics of Torpedo californica acetylcholinesterase inhibition by bisnorcymserine and crystal structure of the complex with its leaving group." Biochemical Journal 444, no. 2 (May 11, 2012): 269–77. http://dx.doi.org/10.1042/bj20111675.

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Natural and synthetic carbamates act as pseudo-irreversible inhibitors of AChE (acetylcholinesterase) as well as BChE (butyrylcholinesterase), two enzymes involved in neuronal function as well as in the development and progression of AD (Alzheimer's disease). The AChE mode of action is characterized by a rapid carbamoylation of the active-site Ser200 with release of a leaving group followed by a slow regeneration of enzyme action due to subsequent decarbamoylation. The experimental AD therapeutic bisnorcymserine, a synthetic carbamate, shows an interesting activity and selectivity for BChE, and its clinical development is currently being pursued. We undertook detailed kinetic studies on the activity of the carbamate bisnorcymserine with Tc (Torpedo californica) AChE and, on the basis of the results, crystallized the complex between TcAChE and bisnorcymserine. The X-ray crystal structure showed only the leaving group, bisnoreseroline, trapped at the bottom of the aromatic enzyme gorge. Specifically, bisnoreseroline interacts in a non-covalent way with Ser200 and His440, disrupting the existing interactions within the catalytic triad, and it stacks with Trp84 at the bottom of the gorge, giving rise to an unprecedented hydrogen-bonding contact. These interactions point to a dominant reversible inhibition mechanism attributable to the leaving group, bisnoreseroline, as revealed by kinetic analysis.
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13

Velikorodov, A. V., E. N. Kutlalieva, N. N. Stepkina, E. A. Shustova, and O. Yu Poddubny. "Amination, Acetamidation, and Amidation of Substituted Aromatic Carbamates in Polyphosphoric Acid." Russian Journal of Organic Chemistry 56, no. 9 (September 2020): 1570–75. http://dx.doi.org/10.1134/s1070428020090110.

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14

Velikorodov, A. V., V. A. Ionova, E. A. Melent’eva, N. N. Stepkina, and A. A. Starikova. "Synthesis of aromatic carbamates derivatives with a chromen-2-one fragment." Russian Journal of Organic Chemistry 50, no. 8 (August 2014): 1112–16. http://dx.doi.org/10.1134/s1070428014080077.

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15

Zahedifar, Pegah, Lukasz Pazdur, Christophe M. L. Vande Velde, and Pieter Billen. "Multistage Chemical Recycling of Polyurethanes and Dicarbamates: A Glycolysis–Hydrolysis Demonstration." Sustainability 13, no. 6 (March 23, 2021): 3583. http://dx.doi.org/10.3390/su13063583.

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The use of polyurethanes and, therefore, the quantity of its scrap are increasing. Considering the thermoset characteristic of most polyurethanes, the most circular recycling method is by means of chemical depolymerization, for which glycolysis is finding its way into the industry. The main goal of polyurethane glycolysis is to recover the polyols used, but only limited attempts were made toward recovering the aromatic dicarbamate residues and derivates from the used isocyanates. By the split-phase glycolysis method, the recovered polyols form a top-layer phase and the bottom layer contain transreacted carbamates, excess glycol, amines, urea, and other side products. The hydrolysis of carbamates results in amines and CO2 as the main products. Consequently, the carbamates in the bottom layer of polyurethane split-phase glycolysis can also be hydrolyzed in a separate process, generating amines, which can serve as feedstock for isocyanate production to complete the polyurethane material cycle. In this paper, the full recycling of polyurethanes is reviewed and experimentally studied. As a matter of demonstration, combined glycolysis and hydrolysis led to an amine production yield of about 30% for model systems. With this result, we show the high potential for further research by future optimization of reaction conditions and catalysis.
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16

Nishizawa, Akihiro, Tsuyoshi Takahira, Kosuke Yasui, Hayato Fujimoto, Tomohiro Iwai, Masaya Sawamura, Naoto Chatani, and Mamoru Tobisu. "Nickel-Catalyzed Decarboxylation of Aryl Carbamates for Converting Phenols into Aromatic Amines." Journal of the American Chemical Society 141, no. 18 (April 21, 2019): 7261–65. http://dx.doi.org/10.1021/jacs.9b02751.

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17

Sancha, Shirley A. R., Nikoletta Szemerédi, Gabriella Spengler, and Maria-José U. Ferreira. "Lycorine Carbamate Derivatives for Reversing P-Glycoprotein-Mediated Multidrug Resistance in Human Colon Adenocarcinoma Cells." International Journal of Molecular Sciences 24, no. 3 (January 20, 2023): 2061. http://dx.doi.org/10.3390/ijms24032061.

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Multidrug resistance (MDR) is a major challenge in cancer chemotherapy. Aiming at generating a small library of anticancer compounds for overcoming MDR, lycorine (1), a major Amaryllidaceae alkaloid isolated from Pancratium maritimum, was derivatized. Thirty-one new compounds (2–32) were obtained by chemical transformation of the hydroxyl groups of lycorine into mono- and di-carbamates. Compounds 1–32 were evaluated as MDR reversers, through the rhodamine-123 accumulation assay by flow cytometry and chemosensitivity assays, in resistant human colon adenocarcinoma cancer cells (Colo 320), overexpressing P-glycoprotein (P-gp, ABCB1). Significant inhibition of P-gp efflux activity was observed for the di-carbamate derivatives, mainly those containing aromatic substituents, at non-cytotoxic concentrations. Compound 5, bearing a benzyl substituent, and compounds 9 and 25, with phenethyl moieties, were among the most active, exhibiting strong inhibition at 2 µM, being more active than verapamil at 10-fold higher concentration. In drug combination assays, most compounds were able to synergize doxorubicin. Moreover, some derivatives showed a selective antiproliferative effect toward resistant cells, having a collateral sensitivity effect. In the ATPase assay, selected compounds (2, 5, 9, 19, 25, and 26) were shown to behave as inhibitors.
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18

TAFESH, A. M., and J. WEIGUNY. "ChemInform Abstract: Selective Catalytic Reduction of Aromatic Nitro Compounds into Aromatic Amines, Isocyanates, Carbamates, and Ureas Using CO." ChemInform 28, no. 3 (August 25, 2010): no. http://dx.doi.org/10.1002/chin.199703321.

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19

Zaki, Remon Melad, Adel M. Kamal El-Dean, and Shaban M. Radwan. "SYNTHESIS AND REACTIONS OF SOME NEW MORPHOLINYLPYRROLYL TETRAHYDROTHIENO[2,3-c] ISOQUINOLINE." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 3 (July 31, 2014): 2512–23. http://dx.doi.org/10.24297/jac.v10i3.6659.

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Hydrazinolysis of ethyl-5-morpholin-4-yl-1-(1H-pyrrol-1-yl)-6,7,8,9-tetrahydrothieno[2,3-c]iso- quinoline-2-carboxylate afforded the corresponding carbo- hydrazide which upon condensation with aromatic aldehydes, acetyl acetone and/ or carbon disulfide gave N- arylidinecarbohydrazide, dimethylpyrazolyl methanone, [1,3,4]oxadiazole-2-thiol and its ethyl ester derivatives respectively. Diazotization of the carbohydrazide with nitrous acid afforded the corresponding carboazide which was used for synthesis of carbamates and substituted carboxamides. Boiling of the carboazide in dry xylene afforded the pyrazinone compound which was used for synthesis of other heterocycles containing pyrrolopyrazinothinoisoquinoline moeity.
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20

Sumita, Akinari, and Tomohiko Ohwada. "Friedel-Crafts-Type Acylation and Amidation Reactions in Strong Brønsted Acid: Taming Superelectrophiles." Molecules 27, no. 18 (September 14, 2022): 5984. http://dx.doi.org/10.3390/molecules27185984.

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In this review, we discuss Friedel-Crafts-type aromatic amidation and acylation reactions, not exhaustively, but mainly based on our research results. The electrophilic species involved are isocyanate cation and acylium cation, respectively, and both have a common +C=O structure, which can be generated from carboxylic acid functionalities in a strong Brønsted acid. Carbamates substituted with methyl salicylate can be easily ionized to the isocyanate cation upon (di)protonation of the salicylate. Carboxylic acids can be used directly as a source of acylium cations. However, aminocarboxylic acids are inert in acidic media because two positively charged sites, ammonium and acylium cation, will be generated, resulting in energetically unfavorable charge-charge repulsion. Nevertheless, the aromatic acylation of aminocarboxylic acids can be achieved by using tailored phosphoric acid esters as Lewis bases to abrogate the charge-charge repulsion. Both examples tame the superelectrophilic character.
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21

Krátký, Martin, Šárka Štěpánková, Katarína Vorčáková, Markéta Švarcová, and Jarmila Vinšová. "Novel Cholinesterase Inhibitors Based on O-Aromatic N,N-Disubstituted Carbamates and Thiocarbamates." Molecules 21, no. 2 (February 11, 2016): 191. http://dx.doi.org/10.3390/molecules21020191.

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22

Furer, V. L. "The IR spectra, hydrogen bonding and conformations of aliphatic and aromatic epoxy carbamates." Journal of Molecular Structure 513, no. 1-3 (December 1999): 1–8. http://dx.doi.org/10.1016/s0022-2860(99)00106-4.

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23

Gonda, Jozef, and Mariana Barnikol. "Simple and efficient synthesis of 4H-3,1-benzoxazines from 2-bromomethylphenyl isocyanate and amines." Collection of Czechoslovak Chemical Communications 55, no. 3 (1990): 752–60. http://dx.doi.org/10.1135/cccc19900752.

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Reaction of 2-bromomethylphenyl isocyanate (II; prepared by radical bromination of 2-tolyl isocyanate with N-bromsuccinimide) with aliphatic and aromatic amines takes place on the NCO group under formation of stable N-alkyl(aryl)-N'-(2-bromomethylphenyl)ureas III. On treatment with sodium hydrogen carbonate in water or sodium hydride in N,N-dimethylformamide, the ureas III are cyclized to give 2-alkyl(aryl)amino-4H-3,1-benzoxazines IV in good yields. Reaction of isocyanate II with alcohols leads to alkyl 2-bromomethylphenyl carbamates. Structure of the synthesized compounds has been proven by spectral methods and elemental analysis.
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24

Tafesh, Ahmed M., and Jens Weiguny. "A Review of the Selective Catalytic Reduction of Aromatic Nitro Compounds into Aromatic Amines, Isocyanates, Carbamates, and Ureas Using CO†." Chemical Reviews 96, no. 6 (January 1996): 2035–52. http://dx.doi.org/10.1021/cr950083f.

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25

Cenini, Sergio, Corrado Crotti, Maddalena Pizzotti, and Francesca Porta. "Ruthenium carbonyl catalyzed reductive carbonylation of aromatic nitro compounds. A selective route to carbamates." Journal of Organic Chemistry 53, no. 6 (March 1988): 1243–50. http://dx.doi.org/10.1021/jo00241a023.

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26

Lapidus, A. L., S. D. Pirozhkov, A. R. Tumanova, A. V. Dolldze, and A. M. Yukhimenko. "High-pressure synthesis of carbamates by the carbonylation of aromatic nitro compounds in cyclohexanol." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 40, no. 8 (August 1991): 1672–74. http://dx.doi.org/10.1007/bf01172272.

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27

Vigne, B., A. Archelas, and R. Furstoss. "“Microbial transformations 18. Regiospecific para-hydroxylation of aromatic carbamates mediated by the fungus Beauveria sulfurescens”." Tetrahedron 47, no. 8 (January 1991): 1447–58. http://dx.doi.org/10.1016/s0040-4020(01)86421-8.

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28

LAPIDUS, A. L., S. D. PIROZHKOV, A. R. TUMANOVA, A. V. DOLIDZE, and A. M. YUKHIMENKO. "ChemInform Abstract: Synthesis of Carbamates by Carbonylation of Aromatic Nitro Compounds Under Pressure in Cyclohexanol." ChemInform 23, no. 25 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199225127.

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29

Kim, Yoon-Jung, Dong Hoon Lee, Yong-Sung Choi, Jin-Hyun Jeong, and So Hee Kwon. "Benzo[b]tellurophenes as a Potential Histone H3 Lysine 9 Demethylase (KDM4) Inhibitor." International Journal of Molecular Sciences 20, no. 23 (November 25, 2019): 5908. http://dx.doi.org/10.3390/ijms20235908.

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Gene expression and tumor growth can be regulated by methylation levels of lysine residues on histones, which are controlled by histone lysine demethylases (KDMs). Series of benzo[b]tellurophene and benzo[b]selenophene compounds were designed and synthesized and they were evaluated for histone H3 lysine 9 demethylase (KDM4) inhibitory activity. Among the carbamates, alcohol and aromatic derivatives, tert-butyl benzo[b]tellurophen-2-ylmethylcarbamate (compound 1c) revealed KDM4 specific inhibitory activity in cervical cancer HeLa cells, whereas the corresponding selenium or oxygen substitute compounds did not display any inhibitory activity toward KDM4. Compound 1c also induced cell death in cervical and colon cancer but not in normal cells. Thus, compound 1c, a novel inhibitor of KDM4, constitutes a potential therapeutic and research tool against cancer.
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30

Smith, Keith, Gamal El-Hiti, and Mohammed Alshammari. "Unravelling Factors Affecting Directed Lithiation of Acylamino­aromatics." Synthesis 50, no. 18 (March 27, 2018): 3634–52. http://dx.doi.org/10.1055/s-0036-1591954.

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Ureas, pivalamides, and carbamates are widely used as directing metalation groups (DMGs) due to their good directing ability, low cost, ease of access, and ease of removal. Lithiation of substituted benzenes having such directing metalation groups using various alkyllithiums in anhydrous solvent at low temperature provides the corresponding lithium intermediates, but lithiation may take place at various sites. Reactions of the lithium reagents obtained in situ with various electrophiles give the corresponding derivatives, typically substituted at the site(s) where initial lithiation occurred, often in high yields. However, it is often difficult to predict what reagents and/or conditions might be needed to give specific products or to draw general conclusions about the factors that influence the reactions, especially when the reagents, temperature, and solvents used in reported reactions are not directly comparable. In this review, therefore, we attempt to unravel the various factors that influence the lithiation of various simple aromatic compounds containing urea, pivalamide, and carbamate groups.1 Introduction2 Lithiation with DMG Attached Directly to the Phenyl Ring2.1 Influence of the DMG2.2 Influence of Substitution on the Phenyl Ring3 Lithiation with the DMG Separated by a CH2 Group from the Phenyl­ Ring3.1 Effect of the DMG3.2 Influence of Substitution on the Phenyl Ring4 Lithiation with the Phenyl Ring and DMG Separated by Two or More CH2 Groups4.1 Effect of the DMG and Its Distance from the Phenyl Group4.2 Effect of Substituents on the Phenyl Ring5 Conclusions
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ARIEL, Naomi, Arie ORDENTLICH, Dov BARAK, Tamar BINO, Baruch VELAN, and Avigdor SHAFFERMAN. "The ‘aromatic patch’ of three proximal residues in the human acetylcholinesterase active centre allows for versatile interaction modes with inhibitors." Biochemical Journal 335, no. 1 (October 1, 1998): 95–102. http://dx.doi.org/10.1042/bj3350095.

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The role of the functional architecture of the human acetylcholinesterase (HuAChE) active centre in accommodating the non-covalent inhibitors tacrine and huperzine A, or the carbamates pyridostigmine and physostigmine, was analysed using 16 mutants of residues lining the active-centre gorge. Despite the structural diversity of the ligands, certain common properties of the complexes could be observed: (a) replacement of aromatic residues Tyr133, Tyr337 and especially Trp86, resulted in pronounced changes in stability of all the complexes examined; (b) effects due to replacements of the five other aromatic residues along the active-centre gorge, such as the acyl pocket (Phe295, Phe297) or at the peripheral anionic site (Tyr124, Trp286, Tyr341) were relatively small; (c) effects due to substitution of the carboxylic residues in the gorge (Glu202, Glu450) were moderate. These results and molecular modelling indicate that the aromatic side chains of residues Trp86, Tyr133 and Tyr337 form together a continuous ‘aromatic patch ’ lining the wall of the active-centre gorge, allowing for the accommodation of the different ligands via multiple modes of interaction. Studies with HuAChE mutants carrying replacements at positions 86, 133 and 337 indicate that the orientations of huperzine A and tacrine in the HuAChE complexes in solution are significantly different from those observed in X-ray structures of the corresponding complexes with Torpedo californica AChE (TcAChE). These discrepancies may be explained in terms of structural differences between the complexes of HuAChE and TcAChE or, more likely, by the enhanced flexibility of the AChE active-centre gorge in solution as compared with the crystalline state.
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32

Li, Fang, Xi Wang, Hongqin Li, Shufang Wang, Wei Xue, and Yanji Wang. "The Induction Period and Novel Active Species in Zn(OAc)2 Catalyzed Synthesis of Aromatic Carbamates." Catalysis Letters 147, no. 6 (April 27, 2017): 1478–84. http://dx.doi.org/10.1007/s10562-017-2055-z.

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33

Kurouchi, Hiroaki, Kyoko Kawamoto, Hiromichi Sugimoto, Satoshi Nakamura, Yuko Otani, and Tomohiko Ohwada. "Activation of Electrophilicity of Stable Y-Delocalized Carbamate Cations in Intramolecular Aromatic Substitution Reaction: Evidence for Formation of Diprotonated Carbamates Leading to Generation of Isocyanates." Journal of Organic Chemistry 77, no. 20 (October 10, 2012): 9313–28. http://dx.doi.org/10.1021/jo3020566.

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34

Tobisu, Mamoru, Keisuke Nakamura, and Naoto Chatani. "Nickel-Catalyzed Reductive and Borylative Cleavage of Aromatic Carbon–Nitrogen Bonds in N-Aryl Amides and Carbamates." Journal of the American Chemical Society 136, no. 15 (April 4, 2014): 5587–90. http://dx.doi.org/10.1021/ja501649a.

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35

VIGNE, B., A. ARCHELAS, and R. FURSTOSS. "ChemInform Abstract: Microbial Transformations. Part 18. Regiospecific para-Hydroxylation of Aromatic Carbamates Mediated by the Fungus Beauveria sulfurescens." ChemInform 22, no. 21 (August 23, 2010): no. http://dx.doi.org/10.1002/chin.199121112.

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36

Wang, Binshen, Sijuan Yang, Lijun Min, Yanlong Gu, Yongya Zhang, Xiaopei Wu, Lifeng Zhang, Elnazeer H. M. Elageed, Shi Wu, and Guohua Gao. "Eco-Efficient Synthesis of Cyclic Carbamates/Dithiocarbonimidates from Cyclic Carbonates/Trithiocarbonate and Aromatic Amines Catalyzed by Ionic Liquid BmimOAc." Advanced Synthesis & Catalysis 356, no. 14-15 (August 19, 2014): 3125–34. http://dx.doi.org/10.1002/adsc.201400026.

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37

Tobisu, Mamoru, Keisuke Nakamura, and Naoto Chatani. "ChemInform Abstract: Nickel-Catalyzed Reductive and Borylative Cleavage of Aromatic Carbon-Nitrogen Bonds in N-Aryl Amides and Carbamates." ChemInform 45, no. 42 (October 2, 2014): no. http://dx.doi.org/10.1002/chin.201442203.

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38

Schnell, Sabine, Doris Schiedek, Rolf Schneider, Lennart Balk, Pekka J. Vuorinen, Heta Karvinen, and Thomas Lang. "Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 6 (June 2008): 1122–34. http://dx.doi.org/10.1139/f08-042.

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The Baltic Sea is exposed to severe human impacts. Besides eutrophication and overfishing, a variety of chemical contaminants threaten the health of fish. During a cruise in December 2001, Atlantic cod ( Gadus morhua ) were collected in the western and southern Baltic Sea, somatic condition factors were estimated, and different biomarkers of contaminant exposure were analysed. Additionally, various polychlorinated biphenyl congeners and organochlorine pesticides were measured in cod liver as more general indicators of pollution, not necessarily as the causative agents for biomarker signals. In most specimens, hepatic ethoxyresorufin-O-deethylase activity and bile 1-OH pyrene, a common polycyclic aromatic hydrocarbon metabolite, were detectable. Both features indicate an induction of the CYP1A biotransformation system in response to toxic substances. The increased occurrence of DNA adducts in some of the specimens also indicates the presence of genotoxic substances. Acetylcholinesterase was inhibited, an indication of exposure to organophosphates, carbamates, or certain heavy metals, particularly in specimens taken at Wismar Bay and off the Lithuanian coast. In general, spatial differences in the biomarker responses as well as in contaminant loads were found, suggesting differences in physiologically active concentrations and mixtures of organic contaminants in this ecosystem.
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39

Yoshimura, Akira, Matthew W. Luedtke, and Viktor V. Zhdankin. "(Tosylimino)phenyl-λ3-iodane as a Reagent for the Synthesis of Methyl Carbamates via Hofmann Rearrangement of Aromatic and Aliphatic Carboxamides." Journal of Organic Chemistry 77, no. 4 (February 9, 2012): 2087–91. http://dx.doi.org/10.1021/jo300007c.

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40

Wang, Binshen, Sijuan Yang, Lijun Min, Yanlong Gu, Yongya Zhang, Xiaopei Wu, Lifeng Zhang, Elnazeer H. M. Elageed, Shi Wu, and Guohua Gao. "ChemInform Abstract: Eco-Efficient Synthesis of Cyclic Carbamates/Dithiocarbonimidates from Cyclic Carbonates/Trithiocarbonate and Aromatic Amines Catalyzed by Ionic Liquid BmimOAc." ChemInform 46, no. 12 (March 2015): no. http://dx.doi.org/10.1002/chin.201512254.

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41

Mishra, Vivek, Jin Ku Cho, Seung-Han Shin, Young-Woong Suh, Hoon Sik Kim, and Yong Jin Kim. "Ruthenium-Na 2 CO 3 -catalyzed one-pot synthesis of ring-hydrogenated carbamates from aromatic amines and organic carbonates under H 2." Applied Catalysis A: General 487 (October 2014): 82–90. http://dx.doi.org/10.1016/j.apcata.2014.09.013.

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42

Aresta, Michele, Angela Dibenedetto, and Eugenio Quaranta. "Reaction of alkali-metal tetraphenylborates with amines in the presence of CO2: a new easy way to aliphatic and aromatic alkali-metal carbamates." Journal of the Chemical Society, Dalton Transactions, no. 20 (1995): 3359. http://dx.doi.org/10.1039/dt9950003359.

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43

Kinarivala, Nihar, Ronak Patel, Rose-Mary Boustany, Abraham Al-Ahmad, and Paul C. Trippier. "Discovery of Aromatic Carbamates that Confer Neuroprotective Activity by Enhancing Autophagy and Inducing the Anti-Apoptotic Protein B-Cell Lymphoma 2 (Bcl-2)." Journal of Medicinal Chemistry 60, no. 23 (November 22, 2017): 9739–56. http://dx.doi.org/10.1021/acs.jmedchem.7b01199.

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44

Yoshimura, Akira, Matthew W. Luedtke, and Viktor V. Zhdankin. "ChemInform Abstract: (Tosylimino)phenyl-λ3-iodane as a Reagent for the Synthesis of Methyl Carbamates via Hofmann Rearrangement of Aromatic and Aliphatic Carboxamides." ChemInform 43, no. 23 (May 10, 2012): no. http://dx.doi.org/10.1002/chin.201223090.

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45

Singh, Harjinder. "The mechanistic study of reaction between N-benzoyl carbamates and aliphatic/aromatic amines for synthesis of substituted N-benzoyl urea derivatives: a DFT approach." Structural Chemistry 30, no. 1 (August 1, 2018): 37–51. http://dx.doi.org/10.1007/s11224-018-1171-8.

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46

ARESTA, M., A. DIBENEDETTO, and E. QUARANTA. "ChemInform Abstract: Reaction of Alkali-Metal Tetraphenylborates with Amines in the Presence of CO2: A New Easy Way to Aliphatic and Aromatic Alkali-Metal Carbamates." ChemInform 27, no. 7 (August 12, 2010): no. http://dx.doi.org/10.1002/chin.199607210.

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47

Mochizuki, Amane, Masahiro Yoshioka, Michie Sakamoto, Takahiro Fukuoka, and Mitsuru Ueda. "One-Pot Synthesis of Aromatic Polycarbodiimide by in Situ Activation of Diamine." High Performance Polymers 10, no. 1 (March 1998): 51–59. http://dx.doi.org/10.1088/0954-0083/10/1/007.

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A one-pot synthesis of aromatic polycarbodiimide from aromatic diamine has been developed. This method involves the preparation of carbamate by the reaction of 4, 4′-hexafluoroisopropylidenebis( p-phenyleneoxy)dianiline (6FPA) with phenylchloroformate, followed by the transformation of the carbamate with trimethylsilylchloride-triethylamine to diisocyanate, and then the polycondensation of the resulting diisocyanate in the presence of 3-methyl-1-phenyl-2-phosopholene-1-oxide. The polycarbodiimide (6FPCD) from 6FPA was obtained in quantitative yield having a number average molecular weight up to 5000. The thermal treatment of 6FPCD gave a crosslinkined polymer having a high glass transition temperature up to 200 °C.
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48

Blencowe, Christopher A., David W. Thornthwaite, Wayne Hayes, and Andrew T. Russell. "Self-immolative base-mediated conjugate release from triazolylmethylcarbamates." Organic & Biomolecular Chemistry 13, no. 32 (2015): 8703–7. http://dx.doi.org/10.1039/c5ob00984g.

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A range of carbamate functionalized 1,4-disubstituted triazoles featuring a model aromatic amine reporter group (R) have been prepared via copper(i) catalysed azide–alkyne cycloaddition and revealed self-immolative characteristics under basic conditions.
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49

Lee, Kyu Hyung, Sun Joo Kim, Hee Sun Park, Byung Wook Lim, Byeongno Lee, Young Jun Park, Wonwoo Nam, and Nam Hwi Hur. "Stable carbamate pathway towards organic–inorganic hybrid perovskites and aromatic imines." RSC Advances 10, no. 62 (2020): 38055–62. http://dx.doi.org/10.1039/d0ra07814j.

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A stable solid carbamate (MAC) composed of CH3NH3+ and CH3NHCO2− units exhibits high reactivity toward inorganic iodide and aromatic aldehyde.
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50

Manikandan, Rajendran, and Masilamani Jeganmohan. "Recent advances in the ruthenium-catalyzed hydroarylation of alkynes with aromatics: synthesis of trisubstituted alkenes." Organic & Biomolecular Chemistry 13, no. 42 (2015): 10420–36. http://dx.doi.org/10.1039/c5ob01472g.

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The hydroarylation of alkynes with amide, azole, carbamate, phosphine oxide, amine, acetyl, sulfoxide and sulphur substituted aromatics in the presence of a ruthenium catalyst via chelation-assisted C–H bond activation is discussed.
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