InCl_3-mediated intramolecular Friedel-Crafts-type cyclization and its application to construct the 6-7-5-6 tetracyclic scaffold of liphagal

摘要

A unified strategy toward the construction of the [5.7.6]tricyclic skeleton of liphagal is reported,featuring InCl3-mediated intramolecular Friedel-Crafts-type cyclization.