The reaction of nitrile oxide-quinone cycloadducts. IV. Acid-catalyzed dealkylative aromatization of the 1: 1-C=C-adducts and base-induced rearrangement products of aromatic nitrile oxides with 2,5- and 2,6-dialkyl- p-benzoquinones

Article abstract of DOI:10.1246/bcsj.73.739

The 1,3-dipolar cycloadducts of aromatic nitrile oxides with 2,5- and 2,6-dialkyl-p-benzoquinones were treated with acetic anhydride/sulfuric acid to give isoxazole-fused hydroquinone diacetates in good yields. The base- induced rearrangement products fro