An efficient synthesis of 2-vinylic cyclic 1,3-alkadienes via the Cp*Ru(ii)-catalyzed intermolecular coupling reactions of alkynes and cyclic allenes†
Abstract
2-Vinylic cyclic 1,3-alkadienes can be obtained with moderate to good yields via the Cp*RuCl(PPh3)2-catalyzed coupling reaction of alkynes with cyclic