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.
在醇的存在下照射几种 2,3-二烷基-2,3-环氧-2,3-二氢-
1,4-萘醌,通过醇与羰基叶立德的亲核加成得到环收缩的醇加合物。