1-Phenylnaphthalenes. Part VII. Reaction of hydrazine hydrate with substituted 1-phenylnaphthalene-2,3-dicarboxylic anhydride
Abstract
1-Phenylnaphthalene-2,3-dicarboxylic anhydride reacts with hydrazine in n-butanol to give a mixture of N-amino-1-phenylnaphthalene-2,3-dicarboximide and 5-phenyl-1,2,3,4-tetrahydrobenzo[g]phthalazine-1,4-dione. The substituted anhydrides give either the corresponding N-amino-imide or the phthalazine-1,4-dione. The reaction of these anhydrides with hydrazine in glacial acetic acid gives the corresponding N-acetamido-imides. Structural determination is based mainly upon spectroscopic evidence.