Anodic Oxidation of (Trimethylsilyl)methanes with π-Electron Substituents in the Presence of Nucleophiles
作者:Toshio Koizumi、Toshio Fuchigami、Tsutomu Nonaka
DOI:10.1246/bcsj.62.219
日期:1989.1
It was found that oxidation potentials of methanes with π-electron substituents were decreased by introduction of a trimethylsilyl group. The anodicoxidation of benzyl-, allyl-, aryl(or alkyl)thiomethyl-, and aryloxymethyl-substituted trimethylsilanes smoothly proceeded in the presence of nucleophiles, e.g. alcohols and carboxylic acids, to eliminate the trimethylsilyl groups giving the corresponding
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.
TBHP-Mediated Oxidative Cross-Coupling of Disulfides with Ethers through a C(sp<sup>3</sup>)-H Thiolation Process
作者:Ya-Ping Hu、Ri-Yuan Tang
DOI:10.1080/00397911.2014.888081
日期:2014.7.18
Abstract A new tert-butyl hydroperoxide (TBHP)–mediated oxidative cross-coupling of disulfides with ethers is presented for the synthesis of etherified sulfides. This method is achieved by a C(sp3)-Hthiolation strategy under metal-free conditions and provides a simple route to constructing the C-S bonds. GRAPHICAL ABSTRACT
A Novel Synthesis of Phenylthiomethyl(PTM) Ethers and Esters by Anodic Oxidation of Phenyl Trimethylsilylmethyl Sulfide
作者:Toshio Koizumi、Toshio Fuchigami、Tsutomu Nonaka
DOI:10.1246/cl.1987.1095
日期:1987.6.5
It was found that anodic oxidation of phenyl trimethylsilylmethyl sulfide in the presence of alcohols and carboxylic acids afforded various kinds of PTM ethers and esters, respectively, in good to reasonable yields.