Artykuły w czasopismach: „Facile Michael Addition Reaction”

1

Reddy, S. Madhava, i H. M. Walborsky. "A facile intramolecular Michael addition reaction". Journal of Organic Chemistry 51, nr 13 (czerwiec 1986): 2605–7. http://dx.doi.org/10.1021/jo00363a042.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

2

Stepanova, Ekaterina, Andrey Maslivets, Svetlana Kasatkina i Maksim Dmitriev. "Diversity-Oriented Synthesis via Catalyst-Free Addition of Ketones to [e]-Fused 1H-Pyrrole-2,3-diones". Synthesis 50, nr 24 (20.08.2018): 4897–904. http://dx.doi.org/10.1055/s-0037-1610647.

Pełny tekst źródła

Streszczenie:

A facile synthetic approach towards two distinct pyrrole-based heterocyclic scaffolds has been developed by the interaction of 1H-pyrrole-2,3-diones fused at the [e]-side to a 1,4-benzoxazin-2-one or quinoxalin-2(1H)-one moiety with ketones. The described interaction proceeds either as an aldol reaction or as a Michael addition/intramolecular cyclization depending on the reaction conditions. The disclosed aldol reaction proceeds with good diastereoselectivity under catalyst-free conditions when the reaction is carried out in aromatic hydrocarbons. Products of the cascade Michael addition/intramolecular cyclization reaction are predominantly formed under catalyst-free and solvent-free conditions. The proposed strategy provides facile access to pharmaceutically interesting pyrrole-based polyheterocycles.

Style APA, Harvard, Vancouver, ISO itp.

3

Wang, Yi-Fan, Cheng-Yu He, Longlei Hou, Ping Tian, Guo-Qiang Lin i Xiaofeng Tong. "Facile Access to 1,5-Benzodiazepines via Amine-Promoted (4+3) Annulations of δ-Acetoxy Allenoates with o-Diaminobenzenes under Mild Conditions". Synlett 29, nr 09 (23.03.2018): 1176–80. http://dx.doi.org/10.1055/s-0037-1609347.

Pełny tekst źródła

Streszczenie:

An amine-promoted (4+3) annulation of δ-acetoxy allenoate with o-diaminobenzene is reported, providing a facile access to 1,5-benzodiazepine. This method features wide reaction scope, mild conditions, and readily available starting materials. The cascade reaction involves aza-Michael addition of o-diaminobenzene to allenoate, elimination of acetate group, and subsequent 1,6-aza-Michael addition.

Style APA, Harvard, Vancouver, ISO itp.

4

Yang, Jingya, Tianyuan Li, Hongyan Zhou, Nana Li, Dongtai Xie i Zheng Li. "Potassium Hydroxide Catalysed Intermolecular Aza-Michael Addition of 3-Cyanoindole to Aromatic Enones". Synlett 28, nr 10 (28.02.2017): 1227–31. http://dx.doi.org/10.1055/s-0036-1588152.

Pełny tekst źródła

Streszczenie:

Indole is one of the utmost important heterocycles as it is an essential nucleus of many pharmaceutical compounds. Its aza-Michael reaction, however, is underdeveloped because of the moiety’s inherent characteristics. Here, a potassium hydroxide catalysed intermolecular aza-Michael reaction of 3-cyanoindole with aromatic enones is described. A variety of chalcone derivatives are well tolerated and afford the corresponding N-adducts in moderate to high yields. The use of a cheap catalyst, low catalyst loading, mild reaction temperature, and good substrate tolerance make this procedure a direct and facile method for the preparation of N1-functionalized indoles.

Style APA, Harvard, Vancouver, ISO itp.

5

Terent'ev, Alexander O., Vera A. Vil', Ivan A. Yaremenko, Oleg V. Bityukov, Dmitri O. Levitsky, Vladimir V. Chernyshev, Gennady I. Nikishin i Fabrice Fleury. "Preparation of a microsized cerium chloride-based catalyst and its application in the Michael addition of β-diketones to vinyl ketones". New J. Chem. 38, nr 4 (2014): 1493–502. http://dx.doi.org/10.1039/c3nj01454a.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

6

Boruah, Romesh C., Anil Saikia, Apurba Chetia i Utpal Bora. "A Facile Synthesis of 1,6-Diketonesvia a Three-Component Michael Addition Reaction". Synlett, nr 10 (2003): 1506–8. http://dx.doi.org/10.1055/s-2003-40821.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

7

Rulev, Alexander Yu, Alexey R. Romanov, Alexander V. Popov, Evgeniy V. Kondrashov i Sergey V. Zinchenko. "Reaction of Bromoenones with Amidines: A Simple Catalyst-Free Approach to Trifluoromethylated Pyrimidines". Synthesis 52, nr 10 (9.03.2020): 1512–22. http://dx.doi.org/10.1055/s-0040-1707969.

Pełny tekst źródła

Streszczenie:

A facile one-pot synthesis of trifluoromethylated pyrimidines has been achieved by the treatment of fluorinated 2-bromoenones with aryl- and alkylamidines. The assembly of pyrimidine core proceeds by the cascade reactions via aza-Michael addition–intramolecular cyclization–dehydrohalogenation/dehydration sequence. This strategy is featured by high selectivity and mild reaction conditions giving the target heterocycles in high yields (up to 99%). The unique influence of trifluoromethyl group on the reaction path is demonstrated.

Style APA, Harvard, Vancouver, ISO itp.

8

Lin, Ning, Qiu-Xiang Wei, Li-Hua Jiang, Yan-Qiu Deng, Zhen-Wei Zhang i Qing Chen. "Asymmetric Michael Addition of Malononitrile with Chalcones via Rosin-Derived Bifunctional Squaramide". Catalysts 10, nr 1 (20.12.2019): 14. http://dx.doi.org/10.3390/catal10010014.

Pełny tekst źródła

Streszczenie:

A rosin-derived bifunctional squaramide catalyzed asymmetric Michael addition of malononitrile with chalcones was discovered. This protocol provides a methodology for the facile synthesis of chiral γ-cyano carbonyl compounds in high yields and enantioselectivities (up to 99% yield and 90% ee) with a lower catalyst loading (0.3 mol%). The predominant R-configured adducts were obtained by this organocatalystic reaction, according to the experimental findings.

Style APA, Harvard, Vancouver, ISO itp.

9

Guy Taylor, Jason, Wellington Martins Ventura i Luiz Guilherme Souza de Assis. "Facile Synthesis of Indolines by a Tandem Nitro-reduction Aza Michael Addition Reaction". HETEROCYCLES 87, nr 10 (2013): 2023. http://dx.doi.org/10.3987/com-13-12789.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

10

Fustero, Santos, Javier Moscardó, María Sánchez-Roselló, Elsa Rodríguez i Pablo Barrio. "Tandem Nucleophilic Addition−Intramolecular Aza-Michael Reaction: Facile Synthesis of Chiral Fluorinated Isoindolines". Organic Letters 12, nr 23 (3.12.2010): 5494–97. http://dx.doi.org/10.1021/ol102341n.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

11

Guo, Shengmei, Kun Jie, Ling Huang, Zhebin Zhang, Yufeng Wang, Zhengjiang Fu i Hu Cai. "Fe-Catalyzed Bisphosphorylation of Amino-2-en-1-ones with Trialkyl Phosphites". Synlett 30, nr 09 (18.04.2019): 1090–94. http://dx.doi.org/10.1055/s-0037-1611803.

Pełny tekst źródła

Streszczenie:

A facile bisphosphorylation of amino-2-en-1-ones with trialkyl phosphites mediated by iron is developed. The reaction is considered to go through two Michael addition progresses. A variety of amino-2-en-1-ones are bisphosphorylated in high yields with functional group tolerance. In addition, the protocol of introduction of two different phosphates into one molecule is successful through a cascade reaction.

Style APA, Harvard, Vancouver, ISO itp.

12

Cui, Dong-Xiao, Yue-Dan Li, Jun-Chao Zhu, Yan-Yan Jia, Ai-Dong Wen i Ping-An Wang. "Highly Efficient Michael Reactions of Nitroolefins by Grinding Means". Current Organic Synthesis 16, nr 3 (17.06.2019): 449–57. http://dx.doi.org/10.2174/1570179416666190101122150.

Pełny tekst źródła

Streszczenie:

Aim and Objective: The direct β-functionalization of trans-β-nitroolefins by Michael reaction is regarded as an efficient way to provide precursors for β-functional amines. However, Michael additions by grinding means with solvent-free conditons are rarely reported. We have developed facile access to β-functional nitroalkanes by grinding means under solvent-free conditions. Materials and Methods: From commercially available materials including ethyl 2-nitroacetate, alkyl 2-cyanoacetates and malononitrile, the grinding reactions between these above-mentioned activated methylenecompounds and various trans-β-nitroolefins were performed at room temperature and solvent-free conditions. Results: A highly efficient direct Michael reaction of nitroolefins by simple grinding means has been developed. Various trans-nitrostyrenes were easily converted into corresponding β-functional nitroalkanes in excellent yields within 5~10 min (up to 36 examples). Conclusion: Herein, we have developed a simple and efficient way to β-functional nitroalkanes through Michael reactions by grinding means. The grinding Michael reaction is fast, clean and stable and these Michael adducts could be easily converted into the other amino compounds served as building blocks in organic synthesis.

Style APA, Harvard, Vancouver, ISO itp.

13

An, Litao, Xiaojun Sun, Meng Lv, Jianfeng Zhou, Fengxia Zhu i Hui Zhong. "Metal-free oxidative coupling of aminopyridines with nitroolefins to imidazo[1,2-a]pyridine in the presence of I2–TBHP–pyridine". Zeitschrift für Naturforschung B 71, nr 2 (1.02.2016): 141–47. http://dx.doi.org/10.1515/znb-2015-0171.

Pełny tekst źródła

Streszczenie:

AbstractA facile metal-free approach to the synthesis of imidazo[1,2-a]pyridine was developed through a tandem reaction of Michael addition and oxidative coupling. Iodine–t-butyl hydroperoxide–pyridine was found to be a green and efficient catalytic system for this approach.

Style APA, Harvard, Vancouver, ISO itp.

14

Du, Yuqun, Hongxia Yan, Song Niu, Lihua Bai i Fu Chai. "Facile one-pot synthesis of novel water-soluble fluorescent hyperbranched poly(amino esters)". RSC Advances 6, nr 91 (2016): 88030–37. http://dx.doi.org/10.1039/c6ra19062f.

Pełny tekst źródła

Streszczenie:

Two kinds of water-soluble fluorescent hyperbranched poly(amino esters) were first synthesized by a convenient one-pot approach via the A₂ + B₃ Michael addition reaction of trimethylolpropane triacrylate and aliphatic diamines.

Style APA, Harvard, Vancouver, ISO itp.

15

Yang, Guang, Wei Long, Wenfeng Yan, Hongye Huang, Meiying Liu, Hui Ouyang, Yulin Feng, Liangji Liu, Xiaoyong Zhang i Yen Wei. "Surface PEGylation of nanodiamond through a facile Michael addition reaction for intracellular drug delivery". Journal of Drug Delivery Science and Technology 57 (czerwiec 2020): 101644. http://dx.doi.org/10.1016/j.jddst.2020.101644.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

16

Chen, Bo, i Shengming Ma. "Tandem Michael Addition/Cyclization Reaction of 2,3-Allenoates with Organozincs: Facile Synthesis of Isocoumarins". Organic Letters 15, nr 15 (22.07.2013): 3884–87. http://dx.doi.org/10.1021/ol401625t.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

17

Ahmed, Naseem, i Iram Parveen. "A Route to Highly Functionalized Stereospecific trans-Aminated Aurones from 3-Bromoflavones with Aniline and N-Phenylurea via a Domino Aza-Michael Ring Opening and Cyclization Reactions". Synthesis 51, nr 04 (10.10.2018): 960–70. http://dx.doi.org/10.1055/s-0037-1610662.

Pełny tekst źródła

Streszczenie:

A facile cascade reaction is reported via aza-Michael addition, ring opening, and cyclization between 3-bromoflavone and aniline derivatives or N-phenylurea in the presence of KOt-Bu and CuI in DMF under mild reaction conditions. Products were obtained as stereospecific trans-aminated aurones in good to excellent yields (61–83%). Our protocol is operationally successful with ease, avoids the requirement of additives and ligands, and offers broad substrate scope.

Style APA, Harvard, Vancouver, ISO itp.

18

Liao, Jia-Yu, Wei Jie Yap, Ji'En Wu, Ming Wah Wong i Yu Zhao. "Three-component reactions of isocyanoacetates, amines and 3-formylchromones initiated by an unexpected aza-Michael addition". Chemical Communications 53, nr 65 (2017): 9067–70. http://dx.doi.org/10.1039/c7cc03468g.

Pełny tekst źródła

Streszczenie:

We present herein a new mode of three-component reactions between isocyanoacetates, amines and 3-formylchromones. Mechanistic and DFT studies reveals that this Ag-catalyzed process is initiated by a facile aza-Michael addition.

Style APA, Harvard, Vancouver, ISO itp.

19

Chen, Zhen-Zhen, Dong-Zhao Yang, Ying-Ying Dong, Mei Chi, Shou-Zhi Pu i Qi Sun. "Hf(OTf)4-Catalyzed Three-Component Synthesis of N-Carbamate-Protected β-Amino Ketones". Molecules 27, nr 3 (8.02.2022): 1122. http://dx.doi.org/10.3390/molecules27031122.

Pełny tekst źródła

Streszczenie:

Hafnium(IV) triflate (Hf(OTf)4) has been identified as a potent catalyst for the direct three-component synthesis of β-carbamate ketones. This new method, featuring a low catalyst loading, fast reaction rate, and solvent-free conditions, provided facile access to a diversity of carbamate-protected Mannich bases. A mechanistic investigation indicated that the three-component reaction proceeds via sequential aldol condensation and aza-Michael addition, but not the Mannich-type pathway.

Style APA, Harvard, Vancouver, ISO itp.

20

Rather, Adil Majeed, i Uttam Manna. "Stretchable and durable superhydrophobicity that acts both in air and under oil". Journal of Materials Chemistry A 5, nr 29 (2017): 15208–16. http://dx.doi.org/10.1039/c7ta04073c.

Pełny tekst źródła

Streszczenie:

A facile and robust Michael addition reaction is strategically exploited here, to develop a highly stretchable (150% deformation) superhydrophobic material. This material strongly repels aqueous phase both in air and under oil and with impeccable physical/chemical durability, and is appropriate for rapid separation of both heavy and light oils from complex aqueous phases with above 99% efficiency.

Style APA, Harvard, Vancouver, ISO itp.

21

Chittimalla, Santhosh, Chennakesavulu Bandi, Vinod Gadi i Siva Gunturu. "Facile Synthesis of 2-Arylindoles through Plancher-Type Rearrangement of 3-Alkyl-3-Arylindolenines". Synlett 28, nr 15 (5.07.2017): 1994–99. http://dx.doi.org/10.1055/s-0036-1588448.

Pełny tekst źródła

Streszczenie:

3-Alkylindoles on reaction with a cyclohexa-2,4-dien-1-one catalyzed by BF3·OEt2 gave the corresponding 3-alkyl-3-arylindolenines in high yields through a tandem Michael addition/aromatization sequence. In the presence of HCl, these indolenine derivatives underwent a facile Plancher-type C-3 to C-2 aryl rearrangement to deliver the corresponding 2-arylindoles.

Style APA, Harvard, Vancouver, ISO itp.

22

Yao, Wei, Mingtai Sun, Yuannian Zhang, Hui Yang, Dong Liang, Haixia Wu, Runyan Ni, Ming Wah Wong i Dejian Huang. "Photo-induced C–H bond activation of N,N′-dialkylethylenediamine upon aza-Michael addition to 1,8-pyrenedione: facile synthesis of fluorescent pyrene derivatives". Organic Chemistry Frontiers 5, nr 10 (2018): 1679–83. http://dx.doi.org/10.1039/c8qo00183a.

Pełny tekst źródła

Streszczenie:

We discovered a reaction between 1,8-pyrenedione and N,N′-dialkylethylenediamine to form highly fluorescent products, via aza-Michael addition followed by double C–H activation facilitated by visible light.

Style APA, Harvard, Vancouver, ISO itp.

23

Teimouri, Mohammad Bagher, i Tayyebeh Abbasi. "Facile synthesis of oxaspirobicyclic butenolides via a domino Michael addition/aldol reaction/γ-lactonization sequence". Tetrahedron 66, nr 21 (maj 2010): 3795–800. http://dx.doi.org/10.1016/j.tet.2010.03.058.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

24

Ventura, Wellington Martins, Luiz Guilherme Souza de Assis i Jason Guy Taylor. "ChemInform Abstract: Facile Synthesis of Indolines by a Tandem Nitro-Reduction Aza Michael Addition Reaction." ChemInform 45, nr 9 (14.02.2014): no. http://dx.doi.org/10.1002/chin.201409128.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

25

Fustero, Santos, Javier Moscardo, Maria Sanchez-Rosello, Elsa Rodriguez i Pablo Barrio. "ChemInform Abstract: Tandem Nucleophilic Addition-Intramolecular Aza-Michael Reaction: Facile Synthesis of Chiral Fluorinated Isoindolines." ChemInform 42, nr 12 (24.02.2011): no. http://dx.doi.org/10.1002/chin.201112110.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

26

Suriyakala, Tevaraj, Alagiri Chinnaraj, Velmurugan Senthilkumar, Mohamedsulaiman Kamal Nasar i Gurusamy Ravindran. "Regioselective Synthesis and Antibacterial Studies of α,β-Unsaturated Ketone Substituted Cyclohexanols via Tandem Michael Addition-Aldol Addition-Cyclization Sequence under Solvent-Free Conditions". Asian Journal of Chemistry 34, nr 10 (2022): 2646–50. http://dx.doi.org/10.14233/ajchem.2022.23907.

Pełny tekst źródła

Streszczenie:

A simple and facile strategy was developed involving test tube with glass-rod using a base catalyst for one-pot solid-state reaction between 1,3,5-triphenyl-pentane-1,5-dione (1) and 1,5-diphenyl-penta- 1,4-dien-3-one (2) to obtain novel 1-(5-benzoyl-2-hydroxy-2,4,6-triphenyl-cyclohexyl)-3-phenylpropenone (3) derivatives. The reaction was accomplished in good to excellent yields and the structure of a synthesized compounds was confirmed by IR, 1H NMR and 13C NMR spectral data. In this one-pot transformation, the column chromatography purification was completely avoided. Besides, the method is highly environmentally benign and atom-economical, and the side product of this reaction was only the water molecule. This green process produces significant carbocycles and offers a considerable advantages such as operational simplicity, short reaction time, high yields, and absence of tedious workup. Further, synthesized derivatives was studied against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Pseudomonas aeruginosa).

Style APA, Harvard, Vancouver, ISO itp.

27

Fu, Hao, Linbo Gong i Shuling Gong. "A New Approach Utilizing Aza-Michael Addition for Hydrolysis-Resistance Non-Ionic Waterborne Polyester". Polymers 14, nr 13 (29.06.2022): 2655. http://dx.doi.org/10.3390/polym14132655.

Pełny tekst źródła

Streszczenie:

This work first synthesized a series of linear polyesters by step-growth polycondensation, then an amino-terminated hydrophilic polyether was grafted to the polyester as side-chains through aza-Michael addition to prepare a self-dispersible, non-ionic waterborne comb-like polyester (NWCPE). In contrast to traditional functionalization methods that usually require harsh reaction conditions and complex catalysts, the aza-Michael addition proceeds efficiently at room temperature without a catalyst. In this facile and mild way, the NWCPE samples with number-average molecular weight (Mn) of about 8000 g mol−1 were obtained. All dispersions showed excellent storage stability, reflected by no delamination observed after 6 months of storage. The NWCPE dispersion displayed better hydrolysis resistance than an ionic waterborne polyester, as was indicated by a more slight change in pH value and Mn after a period of storage. In addition, the film obtained after the NWCPE dispersion was cross-linked with the curing agent, it exhibited good water resistance, adhesion, and mechanical properties.

Style APA, Harvard, Vancouver, ISO itp.

28

Pal, Rammohan, Arpita Das Gupta i Asok K. Mallik. "Facile Iodine-Catalyzed Michael Addition of Indoles to α,α′-Bis(arylmethylene)cyclopentanones: An Efficient Synthesis of E-2-(3-Indolylphenylmethyl)-5-phenylmethylenecyclopentanones". ISRN Organic Chemistry 2012 (28.11.2012): 1–6. http://dx.doi.org/10.5402/2012/674629.

Pełny tekst źródła

Streszczenie:

Iodine-catalyzed reaction of indoles with α,α′-bis(arylmethylene)cyclopentanones afforded one diastereomer of the corresponding Michael adducts, namely, E-2-(3-indolylphenylmethyl)-5-phenylmethylenecyclopentanones, in a good yield. The products form a new group of indole derivatives.

Style APA, Harvard, Vancouver, ISO itp.

29

Gobbo, Pierangelo, Mark C. Biesinger i Mark S. Workentin. "Facile synthesis of gold nanoparticle (AuNP)–carbon nanotube (CNT) hybrids through an interfacial Michael addition reaction". Chemical Communications 49, nr 27 (2013): 2831. http://dx.doi.org/10.1039/c3cc00050h.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

30

Chen, Bo, i Shengming Ma. "ChemInform Abstract: Tandem Michael Addition/Cyclization Reaction of 2,3-Allenoates with Organozincs: Facile Synthesis of Isocoumarins." ChemInform 44, nr 51 (2.12.2013): no. http://dx.doi.org/10.1002/chin.201351165.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

31

Sun, Yanping, Hui Liu, Lin Cheng, Shimeng Zhu, Cuifang Cai, Tianzhi Yang, Li Yang i Pingtian Ding. "Thiol Michael addition reaction: a facile tool for introducing peptides into polymer-based gene delivery systems". Polymer International 67, nr 1 (27.11.2017): 25–31. http://dx.doi.org/10.1002/pi.5490.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

32

Chetia, Apurba, Chandan J. Saikia, Kushal C. Lekhok i Romesh C. Boruah. "A facile synthesis of 1,7-dicarbonyl compounds via three-component Michael addition reactions". Tetrahedron Letters 45, nr 12 (marzec 2004): 2649–51. http://dx.doi.org/10.1016/j.tetlet.2004.01.137.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

33

Lin, Hui, Junjie Ou, Zhongshan Liu, Hongwei Wang, Jing Dong i Hanfa Zou. "Facile construction of macroporous hybrid monoliths via thiol-methacrylate Michael addition click reaction for capillary liquid chromatography". Journal of Chromatography A 1379 (styczeń 2015): 34–42. http://dx.doi.org/10.1016/j.chroma.2014.12.031.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

34

Teimouri, Mohammad Bagher, i Tayyebeh Abbasi. "ChemInform Abstract: Facile Synthesis of Oxaspirobicyclic Butenolides via a Domino Michael Addition/Aldol Reaction/γ-Lactonization Sequence." ChemInform 41, nr 39 (2.09.2010): no. http://dx.doi.org/10.1002/chin.201039162.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

35

Al Majid, Abdullah M. A., Mohammad Shahidul Islam, Assem Barakat, Mohamed H. M. Al-Agamy i Mu Naushad. "Facile and Promising Method for Michael Addition of Indole and Pyrrole to Electron-Deficienttrans-β-Nitroolefins Catalyzed by a Hydrogen Bond Donor Catalyst Feist’s Acid and Preliminary Study of Antimicrobial Activity". Scientific World Journal 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/649197.

Pełny tekst źródła

Streszczenie:

The importance of cooperative hydrogen-bonding effects has been demonstrated using novel 3-methylenecyclopropane-1,2-dicarboxylic acid (Feist’s acid (FA)) as hydrogen bond donor catalysts for the addition of indole and pyrrole totrans-β-nitrostyrene derivatives. Because of the hydrogen bond donor (HBD) ability, Feist’s acid (FA) has been introduced as a new class of hydrogen bond donor catalysts for the activation of nitroolefin towards nucleophilic substitution reaction. It has effectively catalyzed the Michael addition of indoles and pyrrole toβ-nitroolefins under optimum reaction condition to furnish the corresponding Michael adducts in good to excellent yields (up to 98%). The method is general, atom-economical, convenient, and eco-friendly and could provide excellent yields and regioselectivities. Some newly synthesized compounds were for examinedin vitroantimicrobial activity and their preliminary results are reported.

Style APA, Harvard, Vancouver, ISO itp.

36

Filippini, Marie-Héléne, i Jean Rodriguez. "Facile Tandem Michael Addition-Retro Dieckmann Reaction of Cyclic β-Ketoesters: One-Pot Preparation of Polyfunctionalized Acyclic Derivatives". Synthetic Communications 25, nr 2 (styczeń 1995): 245–52. http://dx.doi.org/10.1080/00397919508010813.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

37

Wang, Hai-Feng, Hua Xiao, Xiao-Wei Wang i Gang Zhao. "Tandem intramolecular oxa-Michael addition/decarboxylation reaction catalyzed by bifunctional cinchona alkaloids: facile synthesis of chiral flavanone derivatives". Tetrahedron 67, nr 30 (lipiec 2011): 5389–94. http://dx.doi.org/10.1016/j.tet.2011.05.088.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

38

Huang, Chao, Yanqing Yin, Jiahui Guo, Jiong Wang, Baomin Fan i Lijuan Yang. "A facile synthesis of β-amino carbonyl compounds through an aza-Michael addition reaction under solvent-free conditions". RSC Advances 4, nr 20 (2014): 10188. http://dx.doi.org/10.1039/c3ra46789a.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

39

Lv, Qiulan, Ke Wang, Dazhuang Xu, Meiying Liu, Qing Wan, Hongye Huang, Shangdong Liang, Xiaoyong Zhang i Yen Wei. "Facile preparation and biological imaging of luminescent polymeric nanoprobes with aggregation-induced emission characteristics through Michael addition reaction". Colloids and Surfaces B: Biointerfaces 145 (wrzesień 2016): 795–801. http://dx.doi.org/10.1016/j.colsurfb.2016.05.028.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

40

Chaudhari, Tohasib Yusub, Sandeep K. Ginotra i Vibha Tandon. "Facile access to functionalized indenes and fused quinolines by regioselective 5-enolexo-dig Michael addition and cyclization reactions". Organic & Biomolecular Chemistry 15, nr 44 (2017): 9319–30. http://dx.doi.org/10.1039/c7ob02498c.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

41

Saha, Mithu, Jahar Dey, Kochi Ismail i Amarta K. Pal. "Facile Microwave-Promoted Knoevenagel Condensation and the Combination of Knoevenagel/ Michael addition Reaction in Aqueous Medium Containing Ionic Surfactant". Letters in Organic Chemistry 8, nr 8 (1.10.2011): 554–58. http://dx.doi.org/10.2174/157017811797249272.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

42

Yaragorla, Srinivasarao, i G. Srikanth Kumar. "ChemInform Abstract: A Facile Method for the Synthesis of Various 3-Substituted Indoles via Michael Addition Reaction Using NbCl5." ChemInform 46, nr 45 (22.10.2015): no. http://dx.doi.org/10.1002/chin.201545134.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

43

Eid, Elshimaa M., Huwaida M. E. Hassaneen, Ismail A. Abdelhamid i Ahmed H. M. Elwahy. "Facile one‐pot, three‐component synthesis of novel bis(heterocycles) incorporating thieno[2,3‐ b ]thiophenes via Michael addition reaction". Journal of Heterocyclic Chemistry 57, nr 5 (maj 2020): 2243–55. http://dx.doi.org/10.1002/jhet.3945.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

44

Zheng, Zhihao, Pang Xiao, Huimin Ruan, Junbin Liao, Congjie Gao, Bart Van der Bruggen i Jiangnan Shen. "Mussel-Inspired Surface Functionalization of AEM for Simultaneously Improved Monovalent Anion Selectivity and Antibacterial Property". Membranes 9, nr 3 (6.03.2019): 36. http://dx.doi.org/10.3390/membranes9030036.

Pełny tekst źródła

Streszczenie:

A facile membrane surface modification process for improving permselectivity and antimicrobial property was proposed. A polydopamine (PDA) coating was firstly fabricated on pristine anion exchange membrane (AEM), followed by in situ reduction of Ag without adding any extra reductant. Finally, 2,5-diaminobenzene sulfonic acid (DSA) was grafted onto PDA layer via Michael addition reaction. The as-prepared AEM exhibited improved permselectivity (from 0.60 to 1.43) and effective inhibition of bacterial growth. In addition, the result of the long-term (90-h continuous electrodialysis) test expressed the excellent durability of the modified layer on membrane surface, because the concentration of Cl− and SO42− in diluted chamber fluctuated ~0.024 and 0.030 mol·L-1 with no distinct decline. The method described in this work makes the full use of multifunctional PDA layer (polymer-like coating, in situ reduction and post-organic reaction), and a rational design of functional AEM was established for better practical application.

Style APA, Harvard, Vancouver, ISO itp.

45

Wang, Hai-Feng, Hua Xiao, Xiao-Wei Wang i Gang Zhao. "ChemInform Abstract: Tandem Intramolecular Oxa-Michael Addition/Decarboxylation Reaction Catalyzed by Bifunctional Cinchona Alkaloids: Facile Synthesis of Chiral Flavanone Derivatives." ChemInform 42, nr 48 (3.11.2011): no. http://dx.doi.org/10.1002/chin.201148143.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

46

Huang, Chao, Yanqing Yin, Jiahui Guo, Jiong Wang, Baomin Fan i Lijuan Yang. "ChemInform Abstract: A Facile Synthesis of β-Amino Carbonyl Compounds Through an Aza-Michael Addition Reaction under Solvent-Free Conditions." ChemInform 45, nr 40 (18.09.2014): no. http://dx.doi.org/10.1002/chin.201440038.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

47

FILIPPINI, M. H., i J. RODRIGUEZ. "ChemInform Abstract: Facile Tandem Michael Addition-Retro Dieckmann Reaction of Cyclic . beta.-Ketoesters: One-Pot Preparation of Polyfunctionalized Acyclic Derivatives." ChemInform 26, nr 25 (17.08.2010): no. http://dx.doi.org/10.1002/chin.199525088.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

48

Xiong, Kaiqin, Pengkai Qi, Ying Yang, Xiangyang Li, Hua Qiu, Xin Li, Ru Shen, Qiufen Tu, Zhilu Yang i Nan Huang. "Facile immobilization of vascular endothelial growth factor on a tannic acid-functionalized plasma-polymerized allylamine coating rich in quinone groups". RSC Advances 6, nr 21 (2016): 17188–95. http://dx.doi.org/10.1039/c5ra25917g.

Pełny tekst źródła

Streszczenie:

Biomolecules like VEGF with thiol or amine groups can easily be covalently immobilized onto a Tannic Acid functional plasma polymerized allylamine surface rich in quinone groups in a mild alkali buffer solution based on Schiff base or Michael addition reactions.

Style APA, Harvard, Vancouver, ISO itp.

49

Nayab, Sana, Vanessa Trouillet, Hartmut Gliemann, Peter G. Weidler, Iqra Azeem, Saadia R. Tariq, Anja S. Goldmann, Christopher Barner-Kowollik i Basit Yameen. "Reversible Diels–Alder and Michael Addition Reactions Enable the Facile Postsynthetic Modification of Metal–Organic Frameworks". Inorganic Chemistry 60, nr 7 (17.03.2021): 4397–409. http://dx.doi.org/10.1021/acs.inorgchem.0c02492.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

50

Pesyan, Nader Noroozi, Narmin Akhteh, Hana Batmani, Barış Anıl i Ertan Şahin. "A Facile and Catalyst-free Synthesis of Hexahydroacridine-1,8(2H,5H )-dione and Octahydroacridin-10(1H )-yl)thiourea Derivatives: Inter- and Intramolecular Aza-Michael addition". Heterocyclic Communications 26, nr 1 (10.03.2020): 26–32. http://dx.doi.org/10.1515/hc-2020-0005.

Pełny tekst źródła

Streszczenie:

AbstractAn easy and convenient technique for the one-pot synthesis of novel compounds of hexahydroacridine-1,8(2H,5H)-dione and octahydroacridin-10(1H)-yl) thiourea derivatives has been developed by the reaction of the octahydro-1H-xanthenes with hydroxylamine hydrochloride and thiosemicarbazide in ethylene glycol, which is a green solvent, under mild reaction conditions. IR, 1H NMR, 13C NMR spectrometry, and X-ray diffraction analysis were used to identify the structures of these compounds.

Style APA, Harvard, Vancouver, ISO itp.

Artykuły w czasopismach na temat „Facile Michael Addition Reaction”

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych