Addition of Dissimilar Carbenes across an Unsymmetrically Substituted Alkyne: Regio- and Stereoselective Synthesis of Trisubstituted 1,3-Dienes

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题名:	Addition of Dissimilar Carbenes across an Unsymmetrically Substituted Alkyne: Regio- and Stereoselective Synthesis of Trisubstituted 1,3-Dienes
作者:	;Connor,JM;Chen,MC;Holland,RL;Rheingold,AL
贡献者:	化學學系
关键词:	FUNCTIONAL CONJUGATED DIENES;METALLACYCLOBUTENE COMPLEX;ISOMERIZATION
日期:	2011
上传时间:	2012-03-27 18:11:02 (UTC+8)
出版者:	國立中央大學
摘要:	The formal addition of dissimilar carbenes across an unsymmetrically substituted alkyne has been achieved for the first time by a two-step sequence in which a cobalt alkyne complex undergoes reaction with a carbene addend (CHR(1)) to give a metallacyclobutene complex, followed by reaction with a second carbene addend (CHR(2)) to give a mixture of diene complexes. In situ treatment of the diene mixture with fluoride leads to desilylation and conversion to a single cobalt diene complex with a high degree of regio- and stereoselectivity.
關聯:	ORGANOMETALLICS
显示于类别:	[化學學系] 期刊論文

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