A simple, efficient, and odorless deborylthiolation of aryl- and alkenylborons with thiosulfonates has been achieved under mild conditions using a copper catalyst.
一种简单、高效、无臭味的铜催化芳基硼和烯基硼与硫代磺酸酯的脱硼硫化反应在温和条件下实现。
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。
Phenylboronic acid-catalyzed tandem construction of S–S and C–S bonds: a new method for the synthesis of benzyl disulfanylsulfone derivatives from <i>S</i>-benzyl thiosulfonates
A unique phenylboronic acid-catalyzed dimerization-sulfonylation of S-benzyl thiosulfonates has been disclosed. A metal-free tandem construction of S-S and C-S bonds is an operationally simple method to access a wide range of benzyl disulfanylsulfone derivatives in high to excellent yields. Moreover, the robustness of this tandem transformation has been demonstrated by gram-scale reactions, and a plausible
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.
Pyrone derivatives as protease inhibitors and antiviral agents
申请人:Warner-Lambert Company
公开号:US05808062A1
公开(公告)日:1998-09-15
The present invention relates to novel tri- and tetrasubstituted pyrones and related structures which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The pyrone derivatives are useful in the development of therapies for the treatment of bacterial and viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of multifunctionalized pyrones and of related structures.