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Paper | Regular issue | Vol 43, No. 4, 1996, pp.883-889
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7392
N-Hydroxyamide-containing Heterocycles. Part 7. Preparation and Photochemical Behavior of 1-Benzyloxy-2(1H)-pyrazinones

Junko Ohkanda, Toshihiko Kumasaka, Aki Takasu, Tadashi Hasegawa, and Akira Katoh*

*Department of Industrial Chemistry, Faculty of Engineering, Seikei University, Musashino, Tokyo 180, Japan

Abstract

Synthesis of 1-benzyloxy-2(1H)-pyrazinones having substituents at C-5 and C-6 positions and their photochemical behavior have been studied. Upon irradiation 1-benzyloxy-2(1H)-pyrazinones underwent N-O bond cleavage in high quantum yields. The rearrangement of the benzyloxy group to C-3 position of the ring and [2+2] cycloaddition were also observed.