[EN] PROCESS FOR THE SYNTHESIS OF N-SUBSTITUTED beta -AMINO NITRILES THROUGH THE RING OPENING OF AZIRIDINES [FR] PROCEDE DE SYNTHESE DE DOLLAR G(B)-AMINO NITRILES N SUBSTITUES A TRAVERS L'OUVERTURE DE CYCLE D'AZIRIDINES
A C 2 -symmetric sulfide 6 has been synthesized from cheap L-tartaric acid. It was found that sulfide 6 could perform a tandem reaction with benzyl bromide and tosyl imines to give (2S,3S)-aziridines 9a-9g with good to excellent enantioseletivities (up to 96% ee).
AC 2 -对称硫化物6已由廉价的L-酒石酸合成。发现硫化物 6 可以与苄基溴和甲苯磺酰亚胺进行串联反应,得到 (2S,3S)-氮丙啶 9a-9g,具有良好至极好的对映选择性(高达 96% ee)。
Enantioselective synthesis of aziridines from imines and alkyl halides using a camphor-derived chiral sulfide mediator via the imino Corey–Chaykovsky reaction
作者:Takao Saito、Masao Sakairi、Daisuke Akiba
DOI:10.1016/s0040-4039(01)01016-4
日期:2001.8
Asymmetric one-pot aziridination of imines with alkyl bromides via the imino Corey-Chaykovsky reaction mediated by chiral sulfide is described. The desired aziridines are obtained in good yields with up to 98% ee of the trans isomer. (C) 2001 Elsevier Science Ltd. All rights reserved.