[EN] IRON CATALYSTS WITH UNSYMMETRICAL PNN'P LIGANDS<br/>[FR] CATALYSEURS FERREUX AYANT DES LIGANDS PNN'P ASYMÉTRIQUES
申请人:UNIV TORONTO
公开号:WO2013173930A1
公开(公告)日:2013-11-28
The present invention relates to catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the invention relates to iron (II) complexes containing unsymmetrical tetradentate diphosphine (PNN'P) ligands with two different nitrogen donor groups useful for catalytic transfer hydrogenation or asymmetric transfer hydrogenation of ketones, aldehydes and imines.
An efficient method for the preparation of N,N-disubstituted 1,2-diamines
作者:Judith M Mitchell、Nathaniel S Finney
DOI:10.1016/s0040-4039(00)01501-x
日期:2000.10
2-diamines are useful precursors to numerous reagents used in asymmetric synthesis and catalysis. We report here an efficient protocol for converting the two most commonly used trans-1,2-diamines to N,N-disubstituted derivatives, a transformation that simplifies the preparation of non-C2-symmetric diamines. Central to the method is the high-yieldingconversion of the diamines to the corresponding monoacetylated
C 2-对称的1,2-二胺是不对称合成和催化中使用的许多试剂的有用前体。我们在这里报告了将两种最常用的反式-1,2-二胺转化为N,N-二取代衍生物的有效方案,该转化简化了非C 2-对称二胺的制备。该方法的核心是通过咪唑啉中间体将二胺高产率转化为相应的单乙酰化衍生物。
IRON CATALYSTS WITH UNSYMMETRICAL PNN'P LIGANDS
申请人:THE GOVERING COUNCIL OF THE UNIVERSITY OF TORONTO
公开号:US20150151289A1
公开(公告)日:2015-06-04
The present invention relates to catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the invention relates to iron (II) complexes containing unsymmetrical tetradentate diphosphine (PNN′P) ligands with two different nitro gen donor groups useful for catalytic transfer hydrogenation or asymmetric transfer hydrogenation of ketones, aldehydes and imines.