Perfluoroalkylation of Thiosulfonates: Synthesis of Perfluoroalkyl Sulfides
作者:Ziwei Luo、Xinkan Yang、Gavin Chit Tsui
DOI:10.1021/acs.orglett.0c02235
日期:2020.8.7
A practical synthesis of perfluoroalkyl sulfides is described. The method employs stable and readily accessible thiosulfonates as new electrophiles with commercial nucleophilic perfluoroalkylating reagents. The mild reaction conditions allow access to a wide variety of both aryl- and alkyl-substituted perfluoroalkyl sulfides amenable to pharmaceutical development. Furthermore, the reaction operation
Transition‐Metal‐Free Synthesis of Unsymmetrical Disulfides
<i>via</i>
Three‐Component Reaction of Thiosulfonates, Thiourea and Alkyl halides
作者:Dungai Wang、Quan He、Keqiang Shi、Mingteng Xiong、Yifeng Zhou、Yuanjiang Pan
DOI:10.1002/adsc.202100165
日期:2021.6.8
A transition-metal-free approach to synthesize unsymmetrical disulfides is reported that relies on a K2CO3-promoted one-pot reaction of thiosulfonates, thiourea and alkylhalides under mild conditions. The protocol tolerates a wide range of substrates, leading to various types of unsymmetrical disulfides in moderate to excellent yields. More importantly, the late-stage modification of natural products
据报道,一种合成不对称二硫化物的无过渡金属方法依赖于在温和条件下K 2 CO 3促进的硫代磺酸盐、硫脲和烷基卤化物的一锅反应。该协议容忍广泛的底物,导致各种类型的不对称二硫化物,产量中等至极好。更重要的是,还实现了天然产物和药物分子的后期修饰。
Asymmetric Synthesis of Chiral <i>α</i>
-Substituted Mercaptoglycine Derivatives via <i>α</i>
-Sulfenylation of Ni(II) Complex of Glycine and <i>S</i>
-Substituted 4-Methylbenzenesulfonothioate
作者:Jia Li、Xiaohan Song、Shengbin Zhou、Jiang Wang、Hong Liu
DOI:10.1002/cjoc.201700137
日期:2017.9
The asymmetric α‐sulfenylation of Ni(II) complex of glycine with S‐substituted 4‐methylbenzenesulfonothioate is reported. Due to the mild and simple reaction conditions, this asymmetric reaction is compatible with various functional groups.
Concerns compounds of the formula ##SPC1## Wherein R.sub.1 is a 1 to 6 carbon atom alkyl, benzyl, halobenzyl, lower alkylbenzyl, nitrobenzyl, alkenyl, haloalkenyl, 2-(lower alkylthio)lower alkyl or cyclohexylmethyl group, R.sub.2 is hydrogen, ammonium or alkali metal and n is an integer from 0 to 2. The compounds are prepared by reacting an alkali metal salt of 3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one with a thiolsulfonate. The compounds are useful as plant growth regulators.