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Communication | Regular issue | Vol 4, No. 1, 1976, pp.13-18
Published online, 1st January, 1970
DOI: 10.3987/R-1976-01-0013
The Reaction of Tetrapiperidinoethylene with CH-Acidic Compounds

Otohiko Tsuge,* Tamio Iimure, and Masako Horie

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

Abstract

Tetrapiperidinoethylene (TPE) reacts with CH-acidic compounds such as acetophenones, 2-acetylthiophene, 3-acetylpyridine, phenylacetonitrile, phenyl ethyl ketone and α-tetralone to afford the corresponding enamines. On the other hand, in the reaction with malononitrile TPE gives the oxamidinium salt.