Lewis Acid Catalyzed Cascade Reaction to Carbazoles and Naphthalenes via Dehydrative [3 + 3]-Annulation
作者:Shaoyin Wang、Zhuo Chai、Yun Wei、Xiancui Zhu、Shuangliu Zhou、Shaowu Wang
DOI:10.1021/ol501605h
日期:2014.7.3
A novel Lewisacidcatalyzed dehydrative [3 + 3]-annulation of readily available benzylic alcohols and propargylic alcohols was developed to give polysubstituted carbazoles and naphthalenes in moderate to good yields with water as the only byproduct. The reaction was presumed to proceed via a cascade process involving Friedel–Crafts-type allenylation, 1,5-hydride shift, 6π-eletrocyclization, and Wagner–Meerwein