A novel synthetic pathway to approach 3-(imino)isoindolin-1-ones by the Co-catalyzed cyclization reaction of 2-bromobenzamides with carbodiimides has been developed. This catalytic reaction can tolerate a variety of substituents and provide corresponding products in moderate yields for most cases. According to the literature, the reaction mechanism is proposed through the formation of a five-membered
Concise Approach to Benzisothiazol-3(2<i>H</i>)-one via Copper-Catalyzed Tandem Reaction of <i>o</i>-Bromobenzamide and Potassium Thiocyanate in Water
作者:Fei Wang、Chao Chen、Geng Deng、Chanjuan Xi
DOI:10.1021/jo300250x
日期:2012.4.20
A concise approach to various benzisothiazol-3(2H)-one derivatives has been developed by copper-catalyzed the reaction of o-bromobenzamide derivatives with potassium thiocyanate (KSCN) in water. The reaction proceeds via a tandemreaction with S–C bond and S–N bond formation.