Synthesis and reactivity of captodative cyanoketenes
摘要:
An expedient synthesis and the reactivity of donor substituted cyanoketenes 7 (captodative substitution) are described. 3-Cyano beta-lactams are formed from 7 and imines.
Synthesis and reactivity of captodative cyanoketenes
摘要:
An expedient synthesis and the reactivity of donor substituted cyanoketenes 7 (captodative substitution) are described. 3-Cyano beta-lactams are formed from 7 and imines.
The synthesis of azabicycloalkenones bearing a vinylogous amide moiety was achieved by means of the rhodium-catalyzed decarbonylative cycloaddition of cyclobutenediones with a pendant alkene. The starting cyclobutenediones were efficiently prepared from appropriate squaricacid monoesters and N-benzylalkenylamines under microwave heating conditions.