Chemistry Letters, Vol.30, No.10, 1064-1065, 2001
Generation and behavior of naphthoyloxyl radicals in photocleavage of 1-(naphthoyloxy)-2-pyridones
A series of 1- and 2-naphthoyloxyl radicals are generated from photocleavage of 1-(naphthoyloxy)-2-pyridones in acetonitrile. Introduction of a methoxy group in the naphthalene ring stabilized the naphthoyloxyl radicals to prevent decarboxylation completely and reduced remarkably their reactivities of addition to olefins and hydrogen-atom abstraction.