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Communication | Regular issue | Vol 20, No. 11, 1983, pp.2133-2139
Published online, 1st January, 1970
DOI: 10.3987/R-1983-11-2133
Intramolecular 1,3-Dipolar Cycloadditions of Benzylidene-α-cyanobenzylamines Bearing Non-activated Alkynyl and Alkenyl Functions

Otohiko Tsuge and Kazunori Ueno

*Research Institute of Industrial Science, Faculty of Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga 816-8580, Japan

Abstract

Benzylidene-α-cyanobenzylamine systems undergo an intramolecular cycloaddition via their 1,3-dipolar tautomers, azomethine ylides, to non-activated alkynyl and alkenyl functions, and give mainly dehydrocyanated fused heterocycles.