Double Heck reaction of bridged o , o ′-dibromobiaryls with ethyl acrylate
作者:Mahavir Prashad、Yugang Liu、Xiao Yin Mak、Denis Har、Oljan Repič、Thomas J. Blacklock
DOI:10.1016/s0040-4039(02)02090-7
日期:2002.11
An inter- followed by an intramolecular double Heck reaction of bridged o,o′-dibromobiaryls with ethyl acrylate is described. The nature of the bridging atom/group determined the outcome of the reaction. This double Heck reaction strategy afforded a safe and convenient synthesis of 9-(ethoxycarbonylmethylene)-9H-xanthene and a novel route to 9 and/or 10-substituted anthracene derivatives.