A Hetero Pauson-Khand Reaction of Ketenimines: A New Synthetic Method for γ-Exomethylene-α,β-unsaturated γ-Lactams

Autor: Katsuya Sugizaki, Takashi Otani, Noriki Kutsumura, Takao Saito, Hiroyuki Osada
Rok vydání: 2010
Předmět:
Zdroj: HETEROCYCLES. 80:207
ISSN: 0385-5414
DOI: 10.3987/com-09-s(s)62
Popis: A novel ketenimine Pauson-Khand reaction has been described for the 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.
Databáze: OpenAIRE