Synthesis of Substituted Fluorenes by Cascade Allenylation, Electrocyclization and Intramolecular Friedel-Crafts Reaction of 1,3-Diene-Substituted Propargylic Alcohols
作者:Xiangsheng Xu、Xiaoqing Li、Tao Li、Jiangbin Shao
DOI:10.1055/s-0032-1318104
日期:——
A concise, one-step synthesis of substituted fluorenes through TiCl4-promoted cascade allenylation, electrocyclization and intramolecular Friedel-Crafts reaction of 1,3-diene-substituted propargylic alcohols has been developed. An interesting substituent-dependent regioselectivity was observed.