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Communication | Regular issue | Vol 14, No. 12, 1980, pp.1963-1966
Published online, 1st January, 1970
DOI: 10.3987/R-1980-12-1963
Pyrolysis of Azido-diphenylpyrazines

Akihiro Ohta,* Tokuhiro Watanabe, Junko Nishiyama, Kozue Uehara, and Rei Hirate

*Department of Chemistry, University of Tsukuba, 1-1-1 Ten-nodai, Tsukuba-shi, Ibaraki, 305-8571, Japan

Abstract

The pyrolysis of 2-azido-3,5- (IIa), 2-azido-3,6- (IIb), and 2-azido-5,6-diphenylpyrazines (IIc), prepared from the corresponding 2-chloro-diphenylpyrazines and sodium azide, led respectively to 1-cyano-diphenylimidazoles (IIIa, IIIb, and IIIc) in good yields. The structure elucidation of the products is described.