Selective synthesis of γ,δ-unsaturated carboxylic acid derivatives by the Ni(CO)4- induced ring-opening carbonylation reaction
作者:Toshikazu Hirao、Shinichiro Nagata、Toshio Agawa
DOI:10.1016/s0040-4039(00)98929-9
日期:——
mesyloxymethyl substituent at the vicinal position underwent the Ni(CO)4- induced ring-opening carbonylation reaction with alcohol or amines leading to the γ,δ-unsaturated carboxylic acid derivatives selectively via nickel enolate intermediates. Successful utilization of N,N-dimethyltrimethylsilylamine as an initial nucleophile resulted in condensation with benzaldehyde giving 2-allylcinnamamides.
在邻位带有氯甲基或甲磺酰氧基甲基取代基的gem-二溴环丙烷经历了Ni(CO)4诱导的与醇或胺的开环羰基化反应,从而通过烯醇镍中间体选择性地导致γ,δ-不饱和羧酸衍生物。N,N-二甲基三甲基甲硅烷基胺作为初始亲核试剂的成功利用导致与苯甲醛的缩合,生成了2-烯丙基肉桂酰胺。