New Substituted Cyclopentenones by Coupling of Pauson-Khand and Michael-type Reactions

Article abstract of DOI:10.1016/0040-4039(95)00370-R

A new catalytic synthesis of substituted cyclopentenones from alkynes, alkenes bearing an electron-withdrawing group and CO in the presence of Co2(CO)8 is reported.It consists of a coupled process involving Pauson-Khand and Michael-type reactions.The formation of cyclopentenone derivatives is strongly dependent on the nature of the alkyne and of the activated alkene.