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Communication | Regular issue | Vol 36, No. 7, 1993, pp.1459-1462
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6354
Novel Condensation Reactions of N-Cycloheptatrienylidene Alkylamine N-Oxides with Acetylene Derivatives: Facile Formation of 1-Azaazulen-2(1H)-ones

Kazuaki Ito, Katsuhiro Saito,* and Kensuke Takahashi

*Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

Abstract

Reactions of N-cycloheptatrienylidene alkylamine N-oxide with acetylene derivatives having electron attracting group afforded 1-azaazulen-2(1H)-one derivatives through a unique condensation process leaving methyl formate or hydrogen.