Добірка наукової літератури з теми "Thiochromenes"
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Статті в журналах з теми "Thiochromenes"
Luque-Agudo, V., J. Albarrán-Velo, J. G. Fernández-Bolaños, O. López, M. E. Light, J. M. Padrón, I. Lagunes, E. Román, J. A. Serrano, and M. V. Gil. "Synthesis and antiproliferative activity of sulfa-Michael adducts and thiochromenes derived from carbohydrates." New Journal of Chemistry 41, no. 8 (2017): 3154–62. http://dx.doi.org/10.1039/c6nj03940e.
Повний текст джерелаOrtiz, Cristian, Fernando Echeverri, Sara Robledo, Daniela Lanari, Massimo Curini, Wiston Quiñones, and Esteban Vargas. "Synthesis and Evaluation of Antileishmanial and Cytotoxic Activity of Benzothiopyrane Derivatives." Molecules 25, no. 4 (February 12, 2020): 800. http://dx.doi.org/10.3390/molecules25040800.
Повний текст джерелаAn, Yi, Fang Zhang, Guangfen Du, Zhihua Cai, and Lin He. "Construction of 6H-benzo[c]thiochromenes via a tandem reaction of arynes with thionoesters." Organic Chemistry Frontiers 8, no. 24 (2021): 6979–84. http://dx.doi.org/10.1039/d1qo01177d.
Повний текст джерелаChanda, Rupsa, Abhishek Kar, Aniruddha Das, Baitan Chakraborty та Umasish Jana. "Iron-catalyzed carboarylation of alkynes via activation of π-activated alcohols: rapid synthesis of substituted benzofused six-membered heterocycles". Organic & Biomolecular Chemistry 19, № 23 (2021): 5155–60. http://dx.doi.org/10.1039/d1ob00488c.
Повний текст джерелаWang, W., H. Li, J. Wang, and L. Zu. "Organocatalytic One-Pot Synthesis of Chiral Thiochromenes." Synfacts 2006, no. 10 (September 2006): 1065. http://dx.doi.org/10.1055/s-2006-949371.
Повний текст джерелаMarkova, L. I., and V. G. Kharchenko. "Specific reactions of 5-oxotetrahydro-4H-thiochromenes with Grignard reagents." Chemistry of Heterocyclic Compounds 30, no. 5 (May 1994): 537–39. http://dx.doi.org/10.1007/bf01169828.
Повний текст джерелаGabbutt, Christopher D., John D. Hepworth, and B. Mark Heron. "Reactions of some 2H-Chromenes and 2H-Thiochromenes with triazolinediones." Tetrahedron 51, no. 48 (November 1995): 13277–90. http://dx.doi.org/10.1016/0040-4020(95)00874-8.
Повний текст джерелаBhanja, Chittaranjan, Satyaban Jena, Sabita Nayak, and Seetaram Mohapatra. "Organocatalytic tandem Michael addition reactions: A powerful access to the enantioselective synthesis of functionalized chromenes, thiochromenes and 1,2-dihydroquinolines." Beilstein Journal of Organic Chemistry 8 (October 4, 2012): 1668–94. http://dx.doi.org/10.3762/bjoc.8.191.
Повний текст джерелаTércio, J., B. Ferreira, V. Catani, and J. V. Comasseto. "Synthesis of 2,2-Dimethyl-2H-thiochromenes, the Sulfur Analogs of Precocenes." Synthesis 1987, no. 02 (1987): 149–53. http://dx.doi.org/10.1055/s-1987-27866.
Повний текст джерелаVoskressensky, Leonid G., Ekaterina A. Sokolova, Alexey A. Festa, and Alexey V. Varlamov. "A novel domino condensation–intramolecular nucleophilic cyclization approach towards annulated thiochromenes." Tetrahedron Letters 54, no. 38 (September 2013): 5172–73. http://dx.doi.org/10.1016/j.tetlet.2013.07.040.
Повний текст джерелаДисертації з теми "Thiochromenes"
Martinand-Lurin, Élodie. "Hétérocycles et réactions pallado-catalysées : développements méthodologiques, études mécanistiques et application en synthèse totale." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112018/document.
Повний текст джерелаThe development of new and more efficient synthetic methodologies, selective and eco-friendly seems to be an ongoing challenge as the interest in the heterocyclic compounds is important. All the studies performed during the last three years are divided in several axes in this field.First, the reactivity of N-(sulfonyl) and N-(sulfamoyl) aziridines as precursors of 1,3-zwitterionic species was explorated in order to obtain various 1-azaspiro[5.n]alkanes. The mechanism of the reaction has been studied by DFT calculations. The initial formation of the zwitterionic 1,3-dipole has been found to be the rate-determining step whereas the five-membered ring closure appeared to be the driving force.We tried to apply our expertise in the field of catalytic nitrene transfers (aziridination and C-H amination) to the total synthesis of pactamycin, highly functionalized aminocyclopentitol compound.Furthermore, the developments of a Passerini-Smiles/reduction/cyclization cascade and of a one-pot Passerini-Double-Smiles/SNAr sequence provide straightforward and efficient accesses to 1,4-benzoxazin-3-ones. These paths are complementary as they lead to regioisomers.Meanwhile, a new methodology based on Pd-catalyzed thiocyclopropanes ring opening gave thiochromenes. Due to their high synthetic potential, these compounds appear to be very promising scaffolds in heterocyclic chemistry.Finally, electrochemical and NMR studies coupled with DFT calculations have been done in order to elucidate the mechanism involved in the Pd-catalyzed couplings between an aryl halide, an isocyanide and a nucleophile
Yang, Wei-Chieh, and 楊偉傑. "Synthesis of 2-Benzylindoles and Thiochromenes." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/40246244829485992357.
Повний текст джерела國立臺灣師範大學
化學系
100
The contents of this thesis divided into two parts summarizing the results based on the experimental works performed during the course of study. The first part of this thesis describes the copper-catalyzed intramolecular amination reaction of 2-(2-halophenyl)chroman-3-amine to construct a variety of 2-((1H-indol-2-yl)methyl)phenol derivatives. This method offers an easy access to a wide variety of 2-benzyl-1H-indole derivatives under mild reaction conditions in high yields. The second part focuses on the synthesis thio-nitrochromene derivatives from β-nitrostyrene and 2,2’-dithiodibenzaldehyde in the presence of organocatalyst. This method is a simple, efficient and environmentally friendly in line with the concept of green chemistry.
Choudhury, Abhijnan Ray. "Enantioselective Carbon-Carbon and Carbon-Heteroatom Bond Formation : From Bifunctional to Anion-Binding Catalysis." Thesis, 2016. https://etd.iisc.ac.in/handle/2005/4071.
Повний текст джерелаLin, Ting-Jyun, and 林亭君. "Synthesis and Application of Thiochromene Derivatives." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/79640491761264123410.
Повний текст джерела國立臺灣師範大學
化學系
102
The dissertation is divided into two parts summarizing the results based on the experimental works performed during the course of study. The first part includes a convenient procedure for the synthesis of Benzothiopyran (thiochromene) derivatives via the Michael addition of sodium salt of (2-formylphenyl) ethanethioate and nitrostyrene in the presence of 4-Dimethylaminopyridine (DMAP) as catalyst one pot. Benzothiopyran (thiochromene) derivatives are important and ubiquitous motif structure which is present in wide variety of pharmaceuticals, synthetic intermediates, and functional materials. Besides that some of the Benzothiopyran (thiochromene) derivatives acts as dyes. Thus, Benzothiopyran derivatives have triggered sustainably increasing attention in the synthetic and medicinal chemistry communities. The second part describes a successful route for the one-pot two-step sequence involving a nucleophilic aromatic substitution (SNAr) of activated fluorobenzenes with azide nucleophile and in situ Huisgen cycloaddition of the resulting sodium azides with thiochromenes has been developed for a rapid access to 2,4,5-trisubstituted 1,2,3-(NH)-triazoles. Most of the 1,2,3-triazole derivatives shows anticancer activities, anti-inflammatory and antimicrobial, etc. Also often used as a backbone in the synthesis of natural products. Here, we provide an efficient and high yield method for the synthesis of triazole structure.
Chen, Tsung-Chih, and 陳宗志. "Structure-based Design, Synthesis and Biological Evaluation of Novel 6-Substituted 10-Chloro-12H-thiochromeno[2,3-c]quinolin-12-one Derivatives as Potential Anticancer Agents." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/8fx7sa.
Повний текст джерела國防醫學院
生命科學研究所
102
A series of novel thiochromeno[2,3-c]quinolin-12-ones with a potential side chains had been synthesized by a various synthetic route via Pfitzinger reaction, intramolecular cyclization, and nucleophilic substitution. The biological activity had been preliminarily studied for cell cytotoxicity, topoisomerases inhibition, and in vitro cytotoxicity against NCI’s 60 cell line human tumor screen. The results indicated that compounds N7, N14, N18 and N19 exhibited significant potent inhibitory effects in TOPs-mediated DNA by using TOP activity assays. Twenty-six compounds were selected by the NCI for one dose screening program and further studies on compounds N2, N7, N14, N19, and N25 where the curves cross these lines represent the interpolated values to cause 50% growth inhibition, total growth inhibition, and 50% cell killing, respectively. Among of them, compounds N7 and N14 not only showed the outstanding cytotoxic effects (Both values of GI50 were 1.66 M) but also exhibited dual inhibitions of TOP I/II (the range of IC50 values were between 1-10 M). Interestingly, compound N2 revealed poor cytotoxicity and mild TOPs inhibition but disclosed the high selective ratio (9.091) against breast cancer (GI50 from 0.04 M to 10.10 M). The exact mechanism of how this pharmacophore contributes to its activity is still unclear, however, the group in the extended arm of the novel tetracyclic thiochromenoquinolones might contribute to proper binding to the residues within the TOP-mediated DNA complexes.
Частини книг з теми "Thiochromenes"
Khan, Muhammad Naeem, Misbahul Ain Khan, Salma Rehman, Muhammad Khalid Saeed, and Munawar Ali Munawar. "Synthesis and Biological Activity Studies of 7-Benzylideneamino-5H-thiochromeno [2,3-b] pyridin-5-one." In Current Topics on Chemistry and Biochemistry Vol. 7, 25–36. B P International (a part of SCIENCEDOMAIN International), 2023. http://dx.doi.org/10.9734/bpi/ctcb/v7/16831d.
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