Simple 1,2-Diamine Ligands for Asymmetric Addition of Aryllithium Reagents to Imines
作者:Noemi Cabello、Jean-Claude Kizirian、Ségolène Gille、Alexandre Alexakis、Gérald Bernardinelli、Laurent Pinchard、Jean-Claude Caille
DOI:10.1002/ejoc.200500447
日期:2005.11
Enantioselective addition of various aryllithium reagents to aromatic imines was catalyzed (20 mol-%) by readily accessible 1,2-diamines to afford a wide range of protected diarylmethylamines in up to 94 % enantiomeric excess. Furthermore, the absolute configuration of these arylation products was determined by using X-ray crystallography.
各种芳基锂试剂与芳族亚胺的对映选择性加成反应 (20 mol-%) 由易于获得的 1,2-二胺催化,得到多种保护的二芳基甲基胺,对映体过量高达 94%。此外,这些芳基化产物的绝对构型是通过使用 X 射线晶体学确定的。