中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-(4'-nitrophenyl)-3,6-dichloro-1,4-benzoquinone | 91370-80-8 | C12H5Cl2NO4 | 298.082 |
A careful re-examination of the arylation (P. Brassard and P. L'Écuyer. Can. J. Chem. 36, 814(1958)). reaction with chlorobenzoquinone has revealed in its products the presence of all the three possible disubstituted isomeric quinones. Arylation using diazotized p-nitro-aniline has resulted in the isolation of the three new isomeric quinones, whose structures are assigned, based on chemical and spectral evidences. Mechanistic implications in the arylation and halogenation of benzoquinones are discussed.
The treatment of substituted quinones with acetic anhydride under acid catalysis gives substituted triacetoxybenzenes. Previous work on this reaction is summarized, and the reaction has been extended to include quinones having electron-withdrawing groups, and two quinones which had previously been reported as inactive.