A Route to Regioselectively Functionalized Carbazoles, Dibenzofurans, and Dibenzothiophenes through Anionic Cyclization of Benzyne-Tethered Aryllithiums
作者:Roberto Sanz、Yolanda Fernández、M Pilar Castroviejo、Antonio Pérez、Francisco J. Fañanás
DOI:10.1021/jo060911c
日期:2006.8.1
available products, with 3.3 equiv of t-BuLi and further reaction with selected electrophiles gives rise to functionalized carbazole, dibenzofuran, and dibenzothiophene derivatives in a direct and regioselective manner. The process involves an anionic cyclization on a benzyne-tethered aryllithium intermediate.