94532-50-0Relevant academic research and scientific papers
NEW FACILE SYNTHESIS OF SUBSTITUTED 2-BENZYLIDENEPYRROLIDINES BY THE ANIONIC CYCLIZATION OF δ-ALKYNYLAMINES
Tokuda, Masao,Fujita, Hirotake,Suginome, Hiroshi
, p. 5353 - 5356 (1990)
Treatment of δ-alkynylamines with butyllithium or lithium aluminum hydride brought about a facile anionic cyclization, giving high yields of the corresponding enamine pyrrolidines having an exo double bound.
New anionic cyclization of 4- and 5-alkynylamines: Synthesis of 2-Benzylidene pyrrolidines and piperidines
Tokuda, Masao,Fujita, Hirotake,Nitta, Makoto,Suginome, Hiroshi
, p. 385 - 395 (2007/10/02)
Treatment of 4- and 5-alkynylamines with 0.5-1.2 equiv. of butyllithium brought about a facile anionic cyclization, giving the corresponding enamine pyrrolidines and piperidines having an exo double bond in high yields. Treatment of 4-alkynamides with lit
