131529-86-7Relevant academic research and scientific papers
Tandem cyclization of N-allylaminyl radicals: Stereoselective synthesis of 1,2,5-trisubstituted pyrrolizidines
Senboku, Hisanori,Kajizuka, Yoshinori,Hasegawa, Hikaru,Fujita, Hirotake,Suginome, Hiroshi,Orito, Kazuhiko,Tokuda, Masao
, p. 6465 - 6474 (1999)
Radical reaction of N-allylalk-4-enylaminyl radicals, generated from the corresponding N-chloroamines by treatment with Bu3SnH-AIBN in refluxing toluene, was carried out. Tandem cyclization of the resulting neutral aminyl radicals readily took
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
NEW FACILE SYNTHESIS OF SUBSTITUTED 2-BENZYLIDENEPYRROLIDINES BY THE ANIONIC CYCLIZATION OF δ-ALKYNYLAMINES
Tokuda, Masao,Fujita, Hirotake,Suginome, Hiroshi
, p. 5353 - 5356 (2007/10/02)
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.
