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Photochemistry of 1‐methoxyphthalazine 3‐oxide
Author(s) -
Šket Boris,
Zupan Marko,
Pollak Alfred
Publication year - 1976
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570130357
Subject(s) - chemistry , phthalimide , maleic anhydride , acetic anhydride , irradiation , cycloaddition , photochemistry , oxide , cyclohexane , acetic acid , pummerer rearrangement , organic chemistry , polymer chemistry , catalysis , copolymer , polymer , physics , nuclear physics
Irradiation of 1‐methoxyphthalazine 3‐oxide in cyclohexane at 3500 Å resulted in the formation of phthalimide. On the other hand, irradiation in the presence of maleic anhydride resulted in the formation of 1‐methoxynaphthalene‐2,3‐dicarboxylic acid anhydride. The similar cycloadduct was also observed by irradiation in the presence of benzoquinone. The formation of the cycloaddition products was also observed in acetic anhydride at 60°.