A New Synthetic Route to Methylenomycin B Via Rhodium(II)-Mediated Decomposition of α,β-Unsaturated α'-Diazoketones

Abstract
A new synthesis of methylenomycin B, involving Rh(II)-catalyzed, intramolecular carbon-hydrogen insertion of diazoketone 2c, derived from 2,3-dimethyl-2-butenoic acid 2b, is reported.