The Reactions of Nitrile Oxide-Quinone Cycloadducts. I. Base-Induced Rearrangement of the 1 : 1 -C=C- Adducts of Aromatic Nitrile Oxides with Dialkyl-Substituted p-Benzoquinones

Article abstract of DOI:10.1246/bcsj.65.2480

The 1,3-dipolar cycloadducts, 9-aryl-7-oxa-8-azabicyclo<4.3.0>nona-3,8-diene-2,5-diones, which were obtained from the reactions of aromatic nitrile oxides with dialkyl-substituted p-benzoquinones, underwent an interesting rearrangement on the action of ba