Catalytic Thia-Sommelet−Hauser Rearrangement: Application to the Synthesis of Oxindoles
摘要:
A series of 3-arylthio-1,3-disubstituted-oxindoles were prepared in good yields by the reaction of alpha-diazocarbonyl compounds and sulfenamides. The reaction involves a Rh-catalyzed thia-Sommelet-Hauser-type rearrangement.
A series of 3-arylthio-1,3-disubstituted-oxindoles were prepared in good yields by the reaction of alpha-diazocarbonyl compounds and sulfenamides. The reaction involves a Rh-catalyzed thia-Sommelet-Hauser-type rearrangement.
Transition-Metal-Free Thioamination of Arynes Using Sulfenamides
作者:Rahul N. Gaykar、Subrata Bhattacharjee、Akkattu T. Biju
DOI:10.1021/acs.orglett.8b03966
日期:2019.2.1
The insertion of arynes into the S–N σ-bond of sulfenamides allowing the synthesis of o-sulfanylaniline derivatives with reasonable functional group compatibility is presented. The aryne generated from 2-(trimethylsilyl)aryl triflates using CsF in DME was the key for the success of this transition-metal-free thioamination reaction, which involves new C–N and C–S bond formations in a single step under