Regioselective Acylation of (5-Alkylidene-1,3-cyclohexadiene)tricarbonyliron Complexes by the Reaction with Organometallic Reagents
作者:Mitsuhiko Iwakoshi、Soo Ho Ban、Yujiro Hayashi、Koichi Narasaka
DOI:10.1246/cl.1998.395
日期:1998.5
Reaction of [(1,2,3,4-η)-5-alkylidene-1,3-cyclohexadiene]tricarbonylirons and organometallic reagents generates acyl[(1,2,3,4,5-η)-1-alkylcyclohexadienyl]dicarbonylirons. The acyl group in these complexes migrates to the cyclohexadienyl moiety under carbon monoxide atmosphere, providing [(1,2,3,4-η)-6-acyl-2-alkyl-1,3-cyclohexadiene]tricarbonylirons, which are further transformed to m-alkylphenyl ketones
[(1,2,3,4-η)-5-亚烷基-1,3-环己二烯]三羰基铁与有机金属试剂反应生成酰基[(1,2,3,4,5-η)-1-烷基环己二烯基]二羰基铁。这些配合物中的酰基在一氧化碳气氛下迁移到环己二烯基部分,提供[(1,2,3,4-η)-6-acyl-2-烷基-1,3-环己二烯]三羰基铁,进一步转化用三甲胺 N-氧化物氧化成间烷基苯基酮。