Molecular iodine-mediated synthesis of thiocarbamates from thiols, isocyanides and water under metal-free conditions
作者:Wen-Hu Bao、Chao Wu、Jing-Ting Wang、Wen Xia、Ping Chen、Zilong Tang、Xinhua Xu、Wei-Min He
DOI:10.1039/c8ob01820k
日期:——
A metal-free and efficient molecular iodine-mediated protocol has been developed to prepare thiocarbamates from readily available thiols, isocyanides and water.
KI-catalyzed synthesis of <i>S</i>-Thiocarbamates by cross-coupling of cyclohexyl isocyanide with sulfonyl chlorides
作者:Liangwei Lin、Zhengjun Fang、Yajun Li、Feng Wu、Chaktong Au、Sai Luo
DOI:10.1177/1747519819866401
日期:2019.9
A simple and efficient process for direct generation of various S-thiocarbamates is developed by cross-coupling of readily available sulfonyl chlorides with cyclohexyl isocyanide. The yields are excellent and the structures of the generated S-thiocarbamates are characterized by nuclearmagneticresonancespectroscopy, infrared spectroscopy, and high-resolution mass spectrometry together with X-ray
通过将容易获得的磺酰氯与环己基异氰化物交叉偶联,开发了一种直接生成各种 S-硫代氨基甲酸酯的简单而有效的方法。产率非常好,生成的 S-硫代氨基甲酸酯的结构通过核磁共振光谱、红外光谱和高分辨率质谱以及 X 射线晶体学分析进行表征。该协议的优点是使用容易获得的试剂,采用廉价的 KI 作为试剂,表现出良好的官能团耐受性,并利用温和的反应条件。
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.
Novel S-aryl N-cycloalkylthiolcarbamates, such as S-4-methoxy-phenyl N-cyclohexylthiolcarbamate, which are useful for controlling pea aphids, and the method of controlling pea aphids with the compounds are disclosed.