The present invention relates to a process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides by reacting (a) cyclopropylcarbonitrile to a cyclopropylcarbaldehyde, (b) further reacting to a cyclobutanone, or (d') further reacting to an enamide, 5 (c) further reacting to enantiomerically and diastereomerically enriched cyclobutane amines, or (d) further reacting to an enamide and (e) to an enantiomerically and diastereomerically enriched cyclobutylamide to obtain (f) an enantiomerically and diastereomerically enriched cyclobutane amine, and (g) further reacting to an enantiomerically and diastereomerically enriched cyclobutane amide.
本发明涉及一种制备对映异构体和立体异构体富集的
环丁烷胺和酰胺的方法,包括以下步骤:(a) 将
环丙基腈反应为环丙基醛,(b) 进一步反应为
环丁酮,或(d') 进一步反应为烯酰胺,(c) 进一步反应为对映异构体和立体异构体富集的
环丁烷胺,或(d) 进一步反应为烯酰胺,(e) 再反应为对映异构体和立体异构体富集的
环丁基酰胺,以获得(f) 对映异构体和立体异构体富集的
环丁烷胺,以及(g) 进一步反应为对映异构体和立体异构体富集的
环丁烷酰胺。