Rhodium-Catalyzed Ring-Opening Reaction of Cyclopropenes. Control of Regioselectivity by the Oxidation State of the Metal

Article abstract of DOI:10.1021/jo00025a005

The Rh(II)-catalyzed reaction of unsymmetrically substituted cyclopropenes gives substituted furans derived from cleavage of the less substituted α-bond.In contrast, Rh(I) catalysis results in cleavage of the more substituted α-bond producing a regioisome