nickel-catalyzed oxidative dehydrogenative coupling reaction of alkane with thiol for the construction of C(sp3)-S bond has been established, affording more than 50 alkyl thioethers. Notably, pharmaceutical and agrochemicals, such as Provigil, Chlorbenside and Pyridaben, were readily synthesized by this approach. The sterically hindered ligand BC and disulfide which was formed in situ oxidation of thiol, efficiently
A new method for the preparation of alkyl aryl sulfides through direct oxidative thiolation of alkanes or ethers with arylsulfonylhydrazides using di-tert-butyl peroxide (DTBP) as an oxidant catalyzed by Pd(OAc)2 has been reported. The C-H bonds in various alkanes or ethers were successfully converted into C-S bonds to yield the corresponding sulfides in moderate to good yields.
Efficient C−S Bond Formation by Direct Functionalization of C(
<i>sp</i>
<sup>3</sup>
)−H Bond Adjacent to Heteroatoms under Metal‐Free Conditions
作者:Feng Zhao、Qi Tan、Dahan Wang、Jinjin Chen、Guo‐Jun Deng
DOI:10.1002/adsc.201900666
日期:2019.9.3
A simple and efficient method for the formation of C−Sbond via directfunctionalization of C(sp3)−H bond adjacent to heteroatoms was described under metal‐free conditions. In this work, stable and easily accessible sodium sulfinates were used as the thiolating agents to afford various aryl thioethers in moderate to excellent yields. Mechanistic explorations show that a radical pathyway is possibly
Metal-Free Oxidative C(sp<sup>3</sup>)–H Bond Thiolation of Ethers with Disulfides
作者:Sheng-rong Guo、Yan-qin Yuan、Jian-nan Xiang
DOI:10.1021/ol402281f
日期:2013.9.20
A novel method for the preparation of alkyl aryl sulfides through direct oxidationthiolation of commercial ethers with diaryl disulfides using di-tert-butyl peroxide (DTBP) as the oxidant without a metal catalyst was established. The C(sp3)–Hbond in various ethers was successfully converted into a C–S bond, and the corresponding sulfides were achieved with moderate to high yields.