A highly efficient heterogeneous rhodium(I)-catalyzed C-S coupling reaction of thiols with polychloroalkanes or alkyl halides under mild conditions
作者:Jianhui Xia、Ruiya Yao、Mingzhong Cai
DOI:10.1002/aoc.3273
日期:2015.4
HeterogeneousC–Scouplingreaction of thiols with polychloroalkanes or alkylhalides was achieved at 30 or 80 °C in the presence of 5 mol% of an MCM‐41‐immobilized bidentate phosphine rhodium complex (MCM‐41‐2P‐RhCl(PPh3)) and triethylamine, yielding a variety of formaldehyde dithioacetals, ethylenedithioethers and unsymmetric thioethers in good to excellent yields. This heterogeneousrhodium catalyst
Nanolayered cobalt–molybdenum sulphides (Co–Mo–S) catalyse borrowing hydrogen C–S bond formation reactions of thiols or H<sub>2</sub>S with alcohols
作者:Iván Sorribes、Avelino Corma
DOI:10.1039/c8sc05782f
日期:——
Nanolayered cobalt–molybdenum sulphide (Co–Mo–S) materials have been established as excellent catalysts for C–S bond construction. These catalysts allow for the preparation of a broad range of thioethers in good to excellent yields from structurally diverse thiols and readily available primary as well as secondary alcohols. Chemoselectivity in the presence of sensitive groups such as double bonds,
Selective approach to thioesters and thioethers via sp<sup>3</sup> C–H activation of methylarenes
作者:J. Feng、G.-P. Lu、C. Cai
DOI:10.1039/c4ra09450f
日期:——
Novel CDC approaches for the synthesis of thioesters and thioethers was developed via sp3 C–H activation of methylarenes and subsequent functionalization.
新型CDC方法用于合成硫酯和硫醚,通过对甲基芳烃进行sp3 C-H活化和随后的官能化。
The Reaction of Grignard Reagents with Bunte Salts: A Thiol-Free Synthesis of Sulfides
作者:Jonathan T. Reeves、Kaddy Camara、Zhengxu S. Han、Yibo Xu、Heewon Lee、Carl A. Busacca、Chris H. Senanayake
DOI:10.1021/ol500067f
日期:2014.2.21
react with Grignardreagents to give sulfides in good yields. The S-alkyl Bunte salts are prepared from odorless sodium thiosulfate by an SN2 reaction with alkyl halides. A Cu-catalyzed coupling of sodium thiosulfate with aryl and vinyl halides was developed to access S-aryl and S-vinyl Bunte salts. The reaction is amenable to a broad structural array of Bunte salts and Grignardreagents. Importantly
S-烷基,S-芳基和S-乙烯基硫代硫酸钠盐(Bunte盐)与Grignard试剂反应生成硫化物,收率很高。S-烷基邦特盐是由无味的硫代硫酸钠通过与烷基卤化物的S N 2反应制备的。开发了铜催化的硫代硫酸钠与芳基卤化物和乙烯基卤化物的偶联物,以得到S-芳基和S-乙烯基丁烯酸盐。该反应适合于多种结构的邦特盐和格氏试剂。重要的是,这种硫化物的途径避免了使用恶臭的硫醇原料或副产物。
Copper-Catalyzed Asymmetric Oxidation of Sulfides
作者:Graham E. O’Mahony、Alan Ford、Anita R. Maguire
DOI:10.1021/jo2026178
日期:2012.4.6
Copper-catalyzed asymmetric sulfoxidation of aryl benzyl and aryl alkyl sulfides, using aqueous hydrogen peroxide as the oxidant, has been investigated. A relationship between the steric effects of the sulfide substituents and the enantioselectivity of the oxidation has been observed, with up to 93% ee for 2-naphthylmethyl phenyl sulfoxide, in modest yield in this instance (up to 30%). The influence