Copper (II) catalysed decomposition of penicillin - derived diazoketones: formation of a novel fused β-lactam
作者:Roger J. Ponsford
DOI:10.1016/s0040-4039(00)93173-3
日期:1980.1
Penicillanic acid diazoketone undergoes decomposition in the presence of copper (II) acetylacetonate in benzene solution leading to the C-6 unsubstituted tricyclic ketone (3b) and the novel tricyclic oxapenam (4b) as the minor product.