Asymmetric cyclization reactions. Cyclization of substituted 4-pentenals into cyclopentanone derivatives by Rhodium(I) with chiral ligands

Article abstract of DOI:10.1016/S0040-4020(01)80954-6

Asymmetric cyclization of substituted 4-pentenals (Ia,b,c; IIa,b,c,d)by Rh(I) with chiral ligands was tested, and substrate (IId) with a bulkier substituent at C₄ underwent more stereoselective cyclization by Rh(I)-((+)-DIPMC) to yield substitu