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Communication | Regular issue | Vol 31, No. 7, 1990, pp.1201-1204
Published online, 1st January, 1970
DOI: 10.3987/COM-90-5384
Application of TiCl4 Induced Iminium Ion Cyclizations to the Preparations of Piperidine Alkaloids: Total Syntheses of (±)-Coniine

Tsung-Fan Teng, Jyh-Hwa Lin, and Teng-Kuei Yang*

*Department of Chemistry, National Chung-Hsing University, Taichung, 40227, Taiwan, R.O.C.


Syntheses of (±)-coniine via TiCl4 induced iminium ion cyclizations of α-cyanoamines are described. Moreover, (α-cyanoalkyl)amine could lead to the cyclic piperidine system in good yield.