Tetrahedron Letters p. 4973 - 4976 (1989)
Update date:2022-07-31
Topics:
Yang, Teng-Kuei
Hung, Shun-Ming
Lee, Dong-Sheng
Hong, An-Way
Cheng, Chan-Chun
Tertiary α-cyanoamines served as the precursors of iminium ions in the presence of titanium tetrachloride.Various intramolecular nucleophiles, olefinic and acetylenic, were found to produce cyclized products.The influences of ring sizes and substitutions on the double bonds were also investigated.
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(1990)
