Utilization of Industrial Waste Materials, 11. Synthesis of New, Chiral β-sec-Amino Alcohols – Diastereodivergent Addition of Grignard Reagents to α-Amino Aldehydes Based on the (all-R)-2-Azabicyclo[3.3.0]octane System
作者:Jörg Wilken、Claire Thorey、Harald Gröger、Detlev Haase、Wolfgang Saak、Siegfried Pohl、Jacques Muzart、Jürgen Martens
DOI:10.1002/jlac.199719971016
日期:1997.10
anti-(erythro) structures. A mechanistic interpretation of the stereochemical course of this reaction is presented. The stereodifferentiating ability of selected stereoisomeric (erythro)- and (threo)-amino alcohol structures were tested in homogeneous catalysis, e.g. in two model reactions (optical purities up to 95%).
新,手性β-秒-氨基醇(α [R,β - [R )- 11A - 13A,(α小号,β - [R )- 11B-17B,(α小号,β小号) - 11C,12C,15C,17C和( α - [R,β小号) - 11D,12D,15D,17D已经从对映异构纯的胺(合成全-R - )1a中经由非对映体,N-叔丁氧羰基保护的醛3。格利雅(Grignard)的添加以合理的产率进行,且具有非对映立体选择性高(非对映异构体比率)博士高达⩾95:5)与非螯合控制,一般赞成的抗- (赤式)的结构。提出了对该反应的立体化学过程的机械解释。在均相催化下,例如在两个模型反应(光学纯度高达95%)中,测试了选定的立体异构(赤型)和(苏式)-氨基醇结构的立体分化能力。