The synthesis of enynes from the coupling of terminal alkynes with alkenyl iodides and bromides is described. This system employs 1.0-5.0 mol% of CuI(Xantphos) as a catalyst. A variety of alkenyl iodides and bromides are coupled smoothly with terminal alkynes, affording enynes in good to excellent yields.
描述了一种从末端
炔烃与烯基
碘化物和
溴化物耦合合成烯炔的方法。该体系采用1.0-5.0 mol%的CuI(
Xantphos)作为催化剂。多种烯基
碘化物和
溴化物与末端
炔烃顺利耦合,以良好至优异的产率得到烯炔。