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.
Visible-Light-Enabled Construction of Thiocarbamates from Isocyanides, Thiols, and Water at Room Temperature
作者:Wei Wei、Pengli Bao、Huilan Yue、Sitong Liu、Leilei Wang、Yudong Li、Daoshan Yang
DOI:10.1021/acs.orglett.8b02231
日期:2018.9.7
A convenient visible-light-induced method for the synthesis of thiocarbamates from isocyanides, thiols, and water has been developed under mild reaction conditions. The present protocol offers a cost-effective and operationally straightforward approach to the various thiocarbamates in moderate to good yields by simple use of cheap Rose Bengal as the photocatalyst and water as the reaction reagent as
Iodine-Catalyzed Odorless Synthesis of <i>S</i>-Thiocarbamates with Sulfonyl Chlorides as a Sulfur Source
作者:Wen-Hu Bao、Min He、Jing-Ting Wang、Xin Peng、Men Sung、Zilong Tang、Si Jiang、Zhong Cao、Wei-Min He
DOI:10.1021/acs.joc.9b00178
日期:2019.5.17
efficient protocol for the direct preparation of various S-thiocarbamates with readily available and inexpensive sulfonyl chlorides as an odorless sulfur source was developed. The employment of easily available reactants, excellent functional group tolerability, and mild reaction conditions make this process very practical.
Iodide-Catalyzed Synthesis of Secondary Thiocarbamates from Isocyanides and Thiosulfonates
作者:Pieter Mampuys、Yanping Zhu、Sergey Sergeyev、Eelco Ruijter、Romano V. A. Orru、Sabine Van Doorslaer、Bert U. W. Maes
DOI:10.1021/acs.orglett.6b01023
日期:2016.6.17
A new method for the synthesis of secondary thiocarbamates from readily available isocyanides and thiosulfonates with broad functional group tolerance is reported. The reaction proceeds under mild reaction conditions in isopropanol and is catalyzed by inexpensive sodium iodide.
Iodine-catalyzed cross-coupling of isocyanides and thiols for the synthesis of <i>S</i>-thiocarbamates
作者:Ramdas S. Pathare、Vikas Patil、Harpreet Kaur、Antim K. Maurya、Vijai K. Agnihotri、Shahnawaz Khan、Nagaraju Devunuri、Ashoke Sharon、Devesh M. Sawant
DOI:10.1039/c8ob01855c
日期:——
A novel and efficient metal free, redox-neutral method for the synthesis of secondary thiocarbamates by cross-coupling of readily available thiophenol and isocyanides has been developed. The present methodology exhibits a broad substrate scope with good to excellent yields without an additive/extra oxidant under mild reaction conditions catalyzed by inexpensive iodine as the catalyst.