A Hetero Pauson-Khand Reaction of Ketenimines: A New Synthetic Method for γ-Exomethylene-α,β-unsaturated γ-Lactams
作者:Takao Saito、Katsuya Sugizaki、Hiroyuki Osada、Noriki Kutsumura、Takashi Otani
DOI:10.3987/com-09-s(s)62
日期:——
first time. C,C,N-Triarylketenimines reacted with alkyne-dicobalthexacarbonyl complexes upon heating in toluene in the presence of dimethyl sulfoxide as a promoter to afford γ-lactams, 5-(diphenylmethylene)-1H-pyrrol-2(5H)-ones, in good yields.
首次描述了一种新的酮亚胺 Pauson-Khand 反应。C,C,N-三芳基烯酮亚胺与炔烃-二钴六羰基配合物在甲苯中在二甲亚砜作为促进剂存在下加热反应得到 γ-内酰胺,5-(二苯基亚甲基)-1H-吡咯-2(5H)-酮,在良好的产量。