The regio- and stereoselective enyne CM and RCM reactions involving 1,3-diynes have been developed. The ring-closing metathesis of enediynes induces a facile metallotropic [1,3]-shift of alkynyl ruthenium carbene species, thereby providing a unique entry into the synthesis of fully conjugated 1,5-diene-3-ynes.
已经开发了涉及 1,3-二炔的区域选择性和立体选择性烯炔 CM 和 RCM 反应。烯二炔的闭环复分解导致炔基
钌卡宾物质的易
金属化[1,3]-移位,从而为完全共轭的1,5-二烯-3-炔的合成提供独特的入口。