Organocatalysed Asymmetric β-Amination and Multicomponentsyn-Selective Diamination of α,β-Unsaturated Aldehydes
作者:Hao Jiang、Johanne B. Nielsen、Martin Nielsen、Karl Anker Jørgensen
DOI:10.1002/chem.200700696
日期:2007.11.5
3-aminoaldehydes in good yields and enantioselectivities. This is followed by two easy transformations giving rise to optically active 1,3-aminoalcohols, a common motif in many biologically active compounds, for example, fibrinogen receptor antagonists. Furthermore, optically active alpha,beta-syn-diaminated aldehydes were obtained by the addition of diethyl azodicarboxylate in a one-pot reaction.
提出了一种简单且可负担的途径,该途径通过使用有机催化来获得手性β-氨基化和α,β-氨基化的醛,1,3-氨基醇及相关化合物。手性仲胺(S)-2- [双(3,5-双三氟甲基苯基)三甲基硅烷基氧基甲基]吡咯烷用作催化剂来活化α,β-不饱和醛,从而使琥珀酰亚胺可以添加1,4-区域-和-立体选择性的方式,从而以良好的产率和对映选择性形成N-保护的1,3-氨基醛。随后是两个简单的转化,产生了光学活性的1,3-氨基醇,这是许多生物活性化合物(例如,纤维蛋白原受体拮抗剂)中的常见基序。此外,光学活性Alpha