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Communication | Regular issue | Vol 36, No. 9, 1993, pp.1961-1964
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6419
Reactions of 2-Amino-1-azaazulenes with Diphenylcyclopropenone

Noritaka Abe* and Akikazu Kakehi

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

Abstract

Reaction of 2-amino-1-azaazulene with diphenylcyclopropenone gave 1,2-diphenyl-1,2,3,10b-tetrahydro-4,10b-diazabenz[a]azulen-3-one, which rearranged to N-(1-azaazulen-2-yl)-α-cis-stylbenecarboxamide and N-(1-azaazulen-2-yl)-α-trans-stylbenecarboxamide by heating. Some structures of these products were determined by the X-ray structure analyses. The reaction mechanism is discussed.