Copper-Catalyzed Cross-Coupling of Vinylsiloxanes with Bromoalkynes: Synthesis of Enynes
作者:Loïc Cornelissen、Maxime Lefrancq、Olivier Riant
DOI:10.1021/ol501140p
日期:2014.6.6
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。