Regiospecific free radical annulation reactions of diethylbenzylmalonate with unsymmetrical 1,4 - naphthoquinones: A direct approach to ring a aromatic angucyclinones
作者:William S. Murphy、Daniel Neville、George Ferguson
DOI:10.1016/0040-4039(96)01675-9
日期:1996.10
formation of the C-8 oxygenated benz[a]anthraquinones was achieved by a bromine directed Mn (III) initiated oxidative free radical reaction of diethylbenzylmalonate (DBM) with quinones. The regioisomeric benz[a]anthraquinone was obtained when the isomeric quinone was employed. The novel Mn(OAc)3 induced C - benzylation of bromoquinones with diethylbenzylmalonate is described.