Preparation of enantiomeric pure (-)-(3R,4S)-1-benzyl-3,4-epoxypiperidine and enriched (-)-(R)-1-benzyl-3-hydroxy-1,2,3,6-tetrahydropyridine by kinetic separation of (+/-)-1-benzyl-3,4-epoxypiperidine under the action of chiral lithium amidesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Enantiomeric pure (-)-(3R,4S)-1-benzyl-3,4-epoxypiperidine and (-)-(R)-1-benzyl-3-hydroxy-1,2,3,6-tetrahydropyridine with enantiomeric excess 61.9% were obtained by kinetic separation of (+/-)-1-benzyl-3,4-epoxypiperidine under the action of lithium salt (+)-(S)-2-[(pyrrolidin-1-yl)methyl]pyrrolidine. The sterical direction of the kinetic separation of (+/-)-1-benzyl-3,4-epoxypiperidine and absolute configurations of the target products were established.