Synthesis of cyclopentanone derivatives with polystyrene-supported cyclopentadienyl rhodium catalysts

Abstract

An efficient and reusable polystyrene-supported η 5-cyclopentadienyl rhodium catalyst is prepared and applied to the synthesis of substituted cyclopentanones either via hydrocarbonylative cyclization starting from 1,4-dienes or from allyl vinyl ethers via tandem Claisen rearrangement and intramolecular hydroacylation of the 4-pentenal intermediates.