Asymmetric Synthesis of 1-(2-Pyrrolyl)alkylamines by the Addition of Organometallic Reagents to Chiral 2-Pyrroleimines
作者:Giuseppe Alvaro、Romano Di Fabio、Andrea Gualandi、Diego Savoia
DOI:10.1002/ejoc.200700597
日期:2007.11
magnesium, zinc) reagents to 2-pyrroleimines derived from (S)-valinol and (S)-phenylglycinol gave N-substituted-1-(2-pyrrolyl)alkylamines with high yields and diastereoselectivities. The (S,S)-diastereomers were useful intermediates for the preparation of enantiopure 1-[1-(2-pyrrolyl)alkyl]aziridines by routine cyclization of the β-amino alcohol moiety and for the preparation of (S)-N-benzoyl 1-[1-(2-pyrrolyl)alkyl]amines
将有机金属(锂、镁、锌)试剂添加到衍生自 (S)-缬氨醇和 (S)-苯基甘氨醇的 2-吡咯亚胺中,以高产率和非对映选择性得到 N-取代的-1-(2-吡咯基) 烷基胺。(S,S)-非对映异构体是通过 β-氨基醇部分的常规环化制备对映体纯 1-[1-(2-吡咯基)烷基]氮丙啶和制备 (S)-N- 的有用中间体通过手性助剂的氧化裂解制备苯甲酰基 1-[1-(2-吡咯基)烷基]胺及其 N-取代衍生物。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)