[EN] CHIRAL CATALYST AND METHOD FOR ASYMMETRIC REDUCTION OF AN IMINE<br/>[FR] CATALYSEUR CHIRAL ET PROCÉDÉ DE RÉDUCTION ASYMÉTRIQUE D'UNE IMINE
申请人:UNIV DALHOUSIE
公开号:WO2019051585A1
公开(公告)日:2019-03-21
The present disclosure discusses (i) a compound having a chemical formula according to Formula (I), or its enantiomer; and (ii) a compound that is reactive with a hydride to produce a compound having a chemical formula according to Formula (I), or its enantiomer. Formula (I) is: Formula (I) where R1 and R2 are H, optionally substituted C1-C3 alkyl, or linked together to form an optionally substituted C3 or C4 alkyl group; R3 and R3' are H; R4 and R4' are the same, and are optionally substituted C1-C6 alkyl; and R5 and R5' are the same, and are optionally substituted aryl or heteroaryl. In some examples, R4 and R5 are linked, and R4 ' and R5' are linked, where both linking groups are the same. The present disclosure also discusses methods of asymmetric reduction of an imine, and methods of forming the catalysts and pre-catalysts.
本公开涉及(i)具有化学式按照式(I)的化合物,或其对映体;以及(ii)与氢化物反应以产生具有化学式按照式(I)的化合物,或其对映体的化合物。式(I)为:式(I)其中R1和R2为H,可选择地取代的C1-C3烷基,或结合在一起形成可选择地取代的C3或C4烷基基团;R3和R3'为H;R4和R4'相同,可选择地取代的C1-C6烷基;R5和R5'相同,可选择地取代的芳基或杂环芳基。在一些示例中,R4和R5相互连接,R4'和R5'相互连接,其中两个连接基团相同。本公开还讨论了对亚胺的不对称还原方法,以及形成催化剂和前催化剂的方法。