of various sensitive enynes. The use of cis, trans, and 1,1′-disubstituted vinylsiloxanes was allowed, and full retention of stereochemistry was observed. Sensitive groups such as halides, unsaturated ketones, and aldehydes were fully tolerated.
烯炔是有机合成中的多功能构建基块。呈现了
铜催化的
乙烯基硅氧烷与
溴代
炔烃的Hiyama型交叉偶联。这种温和而有效的方法导致形成各种敏感的
烯炔。允许使用顺式,反式和1,1'-二取代的
乙烯基硅氧烷,并且观察到立体
化学的完全保留。诸如卤化物,不饱和
酮和醛等敏感基团是完全可耐受的。