Synthesis of medium-sized lactones by copper(I) catalyzed atom transfer cyclization
摘要:
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.
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.