Photochemical reactions of phthalazine in 2-propanol.

H Inoue, T Sakurai, K Tomiyama, R Sano…

Index: Inoue, Hiroyasu; Sakurai, Tadamitsu; Tomiyama, Koichi; Sano, Ryo; Oshio, Masahiro; et al. Bulletin of the Chemical Society of Japan, 1988 , vol. 61, p. 893 - 898

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Citation Number: 4

Abstract

Phthalazine undergoes dual photoreactions to simultaneously give two photoproducts, 1, 2- dihydrophthalazine (1) and 1, 1′, 2, 2′-tetrahydro-1, 1′-biphthalazine (2), upon ultraviolet light irradiation in 2-propanol under nitrogen. There occurs neither photochemical nor thermal interconversion between 1 and 2; these compounds are formed independently from a common intermediate through different reaction pathways. The results of ...