Palladium-catalyzed [3C + 2C + 2C] cycloaddition of enynylidenecyclopropanes: efficient construction of fused 5-7-5 tricyclic systems
作者:Gaurav Bhargava、Beatriz Trillo、Marisel Araya、Fernando López、Luis Castedo、José L. Mascareñas
DOI:10.1039/b919258a
日期:——
We report a Pd-catalyzed intramolecular [3C + 2C + 2C] cycloaddition between alkylidenecyclopropanes, alkynes and alkenes. The method provides synthetically relevant 5-7-5 tricyclic structures, with good chemoselectivity and complete diastereoselectivity.