Synthesis of medium-sized lactones by copper(I) catalyzed atom transfer cyclization
作者:Frank O.H. Pirrung、Werner J.M. Steeman、Henk Hiemstra、W.Nico Speckamp、Bernard Kaptein、Wilhelmus H.J. Boesten、Hans E. Schoemaker、Joban Kamphuis
DOI:10.1016/s0040-4039(00)61212-1
日期:1992.8
Several omega-alkenyl dichloroacetates cyclize in moderate to excellent yields to 3,5-dichloro-oxocan-2-ones (8-membered ring lactones) when heated in benzene at 80-180-degrees-C in the presence of a catalytic amount of the cuprous chloride 2,2'-bipyridine complex.