Rh2(OAc)4-Mediated Diazo Decomposition of δ-(N-Tosyl)amino-β-keto-α-diazo Carbonyl Compounds: A Novel Approach to Pyrrole Derivatives - Deng, Guisheng; Jiang, Nan; Ma, Zhihua; Wang, Jianbo (Synlett, 2002)