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Paper | Regular issue | Vol 26, No. 10, 1987, pp.2677-2681
Published online, 1st January, 1970
DOI: 10.3987/R-1987-10-2677
Flash Vacuum Pyrolysis of Pyridazine N-Oxides

Akio Ohsawa, Takashi Itoh, and Hiroshi Igeta

*School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan

Abstract

Flash vacuum pyrolysis of 6-unsubstituted pyridazine 1-oxides afforded nitriles and pyrroles. 6-Phenylpyridazine 1-oxides gave 2-phenyloxazole together with nitriles and pyrroles. 6-Methylpyridazine 1-oxide and 3,6-dimethylpyridazine 1-oxide afforded naphthalene and benzene, respectively, together with other products. The formation mechanism of these products was speculated.