Synthesis and Antimicrobial Evaluation of New Pyrano[4,3-b]pyran and Pyrano[3,2-c]chromene Derivatives Bearing a 2-Thiophenoxyquinoline Nucleus
作者:Jigar A. Makawana、Manish P. Patel、Ranjan G. Patel
DOI:10.1002/ardp.201100203
日期:2012.4
A new series of pyrano[4,3‐b]pyran 4a–i and pyrano[3,2‐c]chromene 6a–r derivativesbearing a 2‐thiophenoxyquinoline nucleus were synthesized by reaction of 2‐(4‐(un)‐substituted thiophenoxy)quinoline‐3‐carbaldehydes 2a–i with 6‐methyl‐4‐hydroxypyran‐2‐one 3 and 4‐hydroxy‐6‐(un)‐substituted‐2H‐chromen‐2‐one 5a–b respectively and malononitrile at room temperature in the presence of KOH as a basic catalyst
Synthesis and in vitro antimicrobial evaluation of novel 2-amino-6-(phenylthio)-4-(2-(phenylthio)quinolin-3-yl)pyridine-3,5-dicarbonitriles
作者:Mehul B. Kanani、Manish P. Patel
DOI:10.1007/s00044-012-0292-7
日期:2013.6
A new series of 2-thiophenoxyquinoline-based penta-substituted pyridine derivatives, 6(a–r), has been synthesized by base-catalyzed cyclocondensation reaction through multi-component reaction (MCR) approach. In vitro antimicrobial activity of the synthesized compounds was investigated against a representative panel of pathogenic strains, specifically three Gram-positive bacteria (Streptococcus pneumoniae
Synthesis and Structure Characterization of Thiazolyl-Pyrazoline Derivatives Bearing Quinoline Moiety
作者:Yong-Ming Zen、Fei Chen、Fang-Ming Liu
DOI:10.1080/10426507.2011.621002
日期:2012.3.1
thiazolyl-pyrazoline derivatives containing the quinolinemoiety were obtained by condensation of 2-bromo-1-phenyl-ethanone and 3-aryl-5-(2-substituted-quinolin-3-yl)-1-thiocarbamoyl-pyrazolines (4a-f). The structures of the newly synthesized compounds were characterized and their structures confirmed by IR, 1H NMR, mass spectrometry and elemental analysis. The solid-state structure of 3-(4-chlorophe
Synthesis and Structure Characterization of 1,5-Benzothiazepine Derivatives Bearing Quinoline Moiety
作者:Y.-M. Zeng、H.-H. Zeng、F.-M. Liu
DOI:10.1002/jhet.1519
日期:2016.5
A series of 1,5‐benzothiazepinederivatives bearing quinoline moiety were obtained by 1,5‐benzothiazepine containing 2‐phensulfanyl‐quinoline (4a, 4b, 4c) with equimolar amounts of benzohydroximinoyl chlorides 5 in CH2Cl2 at room temperature. Structures of new compounds were confirmed by elemental analysis, IR, 1H‐NMR, MS, and X‐ray diffraction analysis.
Photoredox Catalysis with Visible Light for Synthesis of Thioxanthones Derivatives
作者:Wen Liao、Jing Hou、Hongding Tang、Xinyue Guo、Guanyu Sheng、Ming Jin
DOI:10.1021/acs.orglett.3c02253
日期:2023.9.1
A visible-light-promoted and transition-metal-free photoredox-catalysis strategy is developed for the synthesis of thioxanthone derivatives (TXs). The mechanistic study and density functional theory calculations suggest that visible-light-promoted intramolecular cyclization can be divided into hydrogen atom transfer, C–C formation, and oxidative dehydrogenation with high regioselectivity and reactivity