Clean preparation of S-thiocarbamates with in situ generated hydroxide in 2-methyltetrahydrofuran
摘要:
A simple and clean protocol for the synthesis of various alkyl and (hetero)aryl S-thiocarbamates was established. The usage of in situ generated hydroxide as both an oxygen source and hydrogen source as well as biomass-derived 2-methyltetrahydrofuran as a green reaction medium, the avoidance of phosphorus-containing reductant, and the generation of harmless water and nitrogen as the side-products have given the present method atom-economy and environmental friendliness. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
Desulfinative and denitrogenative palladium-catalyzed cross-coupling of arylsulfonyl hydrazides with aryl diazonium salts
作者:Yonghui Shang
DOI:10.1002/aoc.4484
日期:2018.11
Palladium‐catalyzedcross‐coupling of arylsulfonyl hydrazides with aryl diazonium salts to provide biaryl products under relatively mild conditions is established. This reaction proceeded smoothly with tetrabutylammonium iodide and gave the corresponding products with CC bonds formed using PdCl2/bis (dicyclohexylphosphino) methane catalyst under air. This method also allowed easy access to significant
Microwave-Assisted Synthesis and Antimicrobial Activity of 3-(Arylsulfanyl)-4-hydroxy-2H-chromen-2-ones
作者:Ch. Anjaiah、M. Nagamani、Ch. Abraham Lincoln、D. Ashok
DOI:10.1134/s1070363218100201
日期:2018.10
efficient microwave-assisted synthesis of 3-(arylsulfanyl)-4-hydroxy-2H-chromen-2-ones by condensation of arenesulfonohydrazides with 4-hydroxy-2H-chromen-2-one in the presence of iodine is described. The synthesized compounds were characterized by spectral data (IR, 1H and 13C NMR, and mass spectra and elemental analyses) and were tested for their in vitro antimicrobialactivity against bacterial and fungal
的3-(芳硫基)一种有效的微波辅助合成-4-羟基-2- ħ -色烯-2-酮用4-羟基-2- arenesulfonohydrazides的缩合ħ -色烯-2-酮在碘的存在下进行说明。通过光谱数据(IR,1 H和13 C NMR,以及质谱和元素分析)对合成的化合物进行表征,并测试其对细菌和真菌生物的体外抗菌活性。
Synthesis and antineoplastic activity of phenyl-substituted phenylsulfonylhydrazones of 1-pyridinecarboxaldehyde 1-oxide
作者:William Loh、Lucille A. Cosby、Alan C. Sartorelli
DOI:10.1021/jm00180a010
日期:1980.6
A variety of derivatives of 2-pyridinecarboxaldehyde 1-oxide benzenesulfonylhydrazone, containing substituents on the benzene or pyridine rings as well as on the nitrogen atom which is bonded directly to the sulfonyl group, have been synthesized. The antineoplastic activity of these compounds has been assessed in mice bearing either leukemia L1210 or P388. The most potent agents in this series were 2,4-dimethoxy,3,4-dimethoxy-, and 2,4,6-trimethylbenzenesulfonylhydrazone of 2-pyridinecarboxyaldehyde 1-oxide, all causing disappearance of tumors in 20-80% of leukemia-bearing mice.
1-Acryloyl-2-cyanoindole: A Skeleton for Visible-Light-Induced Cascade Annulation