Facile and chemoselective rhodium-catalysed intramolecular hydroacylation of α,α-disubstituted 4-alkylidenecyclopropanals
作者:Damien Crépin、Coralie Tugny、James H. Murray、Christophe Aïssa
DOI:10.1039/c1cc14626b
日期:——
Mild intramolecular hydroacylation of α,α-disubstituted 4-alkylidenecyclopropanals has been developed, avoiding decarbonylation and affording cycloheptenones in good yields. The reaction is chemoselective in favour of the alkylidenecyclopropane moiety when potential alkene or alkyne acceptors are tethered to the substrate.
已经开发出温和的分子内氢酰基化反应,用于α,α-二取代的4-烯基环丙醛,避免了去羰基化,并在很好产率下获得了环七烯酮。当潜在的烯烃或炔烃受体与底物连接时,该反应在化学选择性上倾向于烯基环丙烷基团。