PHOTOCHEMICAL REACTION OF EPOXYNAPHTHOQUINONES WITH ALCOHOLS. AN IONIC TRAPPING OF CARBONYL YLIDES
Irradiation of several 2,3-dialkyl-2,3-epoxy-2,3-dihydro-1,4-naphthoquinones in the presence of alcohol gave ring-contracted alcohol-adducts via nucleophilic addition of alcohol to carbonyl ylides.