Potassium–Tertiary Butoxide–Assisted Addition of Thioglicolic Acid to Chalcone Derivatives Under Solvent-Free Conditions
摘要:
A series of chalcone derivatives containing thioglicolic acid (4a-j) was prepared by addition of thioglicolic acid to the chalcones (3a-j) in the presence of KOt-Bu under solvent-free conditions. The mechanistic pathway of the reaction can be explained by the Michael-type addition of thioglicolic acid to chalcone derivatives (3a-j).
addition of thiophenol to chalcones (1a–m) in the presence of a catalytic amount of KOt-Bu in solvent free conditions. In addition, the antibacterial and antifungal in vitro properties were tested against some human pathogenic microorganisms by employing the disk diffusion technique. A majority of compounds were remarkably active against several of the microorganisms. Compound 3i was determined to be the
在无溶剂条件下,在催化量的KO t -Bu存在下,将硫代苯酚加到查耳酮(1a - m)中,制备了一系列苯硫酚加合物(3a - m)。此外,通过使用圆盘扩散技术测试了对某些人类病原微生物的抗菌和抗真菌体外性能。大多数化合物对几种微生物具有显着的活性。确定化合物3i是最具活性的化合物。
Elaborating Complex Heteroaryl‐Containing Cycles via Enantioselective Palladium‐Catalyzed Cycloadditions
作者:Barry M. Trost、Zhiwei Jiao、Chao‐I. (Joey) Hung
DOI:10.1002/anie.201910061
日期:2019.10.14
asymmetric synthesis of heteroaryl-containing cycles via palladium-catalyzedcyclization is reported. Most classes of nitrogen-containing aromatics, including pyridines, quinolines, pyrimidines, various azoles and the derivatives of nucleobases are compatible substrates, offering various heteroaryl-substituted cyclopentane, pyrrolidine, furanidine and bicyclo[4.3.1]decadiene derivatives with good to
A series of novel beta-mercapto carbonyl compounds (3a-z), methyl 2-(3-oxo-1,3-diarylpropylthio)acetate, were synthesized and characterized via iodine-catalyzed addition of methyl thioglycolate to chalcones (1a-z).
Potassium–Tertiary Butoxide–Assisted Addition of Thioglicolic Acid to Chalcone Derivatives Under Solvent-Free Conditions
作者:Mustafa Ceylan、Meliha Burcu Gürdere、Hayreddin Gezegen、Yakup Budak
DOI:10.1080/00397910903291129
日期:2010.8.5
A series of chalcone derivatives containing thioglicolic acid (4a-j) was prepared by addition of thioglicolic acid to the chalcones (3a-j) in the presence of KOt-Bu under solvent-free conditions. The mechanistic pathway of the reaction can be explained by the Michael-type addition of thioglicolic acid to chalcone derivatives (3a-j).
Palladium-catalyzed direct intramolecular double α-C–H arylation of 1,5-diketone: a strategy for synthesis of Tröger’s base analogues
作者:Jia Ju、Lei Zhang、Ruimao Hua
DOI:10.1016/j.tetlet.2014.04.069
日期:2014.5
9-Aryl-2,3:6,7-dibenzobicyclo[3.3.1]nona-2,6-diene-4,8-diones were straightforwardly prepared via a tandem reaction of easily available ortho-chloroacetophenone and ortho-chlorochalcone catalyzed by PdCl2(PCy3)2.