37019-83-3Relevant academic research and scientific papers
Reaction de l'azaallyllithium en serie acetylenique: Une methode directe de preparation de phenylethynyl pyrrolidines, -pyrrolines et -pyrroles N-non substitues et N-alkyles
Vo-Quang, Liliane,Vo-Quang, Yen
, p. 145 - 151 (2007/10/02)
Cycloaddition of 1,3-diphenyl-2-azaallyllithium to tolane, diphenylbutadiyne and 1,4-diphenylbutenyne E produces quantitatively 2,3,4,5-tetraphenylpyrrole, 3-phenylethynyl-2,4,5-triphenyl-3-pyrroline and 3-phenylethynyl-2,4,5-triphenylpyrrolidine, respectively.Treatment before hydrolysis with benzyl bromide or dimethyl sulfate gives N-alkylsubstituted derivatives.The structure of 3-pyrrolines was established by spectral data and chemical correlations.Stereochemical courses of this new synthetic method for 3-pyrrolines are discussed.
STEREOCHIMIE DE L'ADDITION DU DIPHENYL-1,3 AZAALLYLLITHIUM AUX ARYLALLENES DETERMINATION DE LA CONFIGURATION DES METHYLENEPYRROLIDINES PAR RMN
Vo-Quang, L.,Vo-Quang, Y.,Pouet, M. J.,Simonnin, M. P.
, p. 4343 - 4352 (2007/10/02)
La reaction du diphenylazaallyllithium aves les aryllenes conduit principalement a deux methylenepyrrolidines epimeres au niveau du carbone-2.La configuration de ces methylenepyrrolidines a ete etablie par RMN grace a la dependance stereochimique des coup
