American Chemical Society, Journal of Organic Chemistry, 2(80), p. 1279-1283, 2015
DOI: 10.1021/jo502611x
Full text: Unavailable
A cyclic beta-dicarbonyl phenyliodonium ylide reacted with various substituted styrenes under Rh2(OAc)4 catalysis to give cyclopropanes and dihydrofurans in a highly regioselective fashion. When styrenes with electron donating substituents or disubstituted were employed, only dihydrofurans were isolated instead. A mechanism involving two competing pathways rationalizes the results.