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Communication | Regular issue | Vol 23, No. 2, 1985, pp.287-290
Published online, 1st January, 1970
DOI: 10.3987/R-1985-02-0287
Termolysis of 4-Pyridylazides Leading to the Synthesis of 6H-1,4-Diazepines

Yoshihiro Ohba, Ikuo Matsukura, Yoshimasa Fukazawa, and Tarozaemon Nishiwaki*

*Department of Chemistry, Faculty of Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan


Thermolysis of a methanolic solution of 4-pyridylazides (1) at 200°C for 8-12 min was found to give unstable but isolable 5-methoxy-6H-1,4-diazepines (4) and (5), along with 32-45% yield of 5,6-dihydro-6-methoxy-7H-tetrazolo[1,5-d][1,4]diazepines (6).