Access to chiral tertiary amines via the iridium-catalyzed asymmetric hydrogenation of enamines
作者:Pradeep Cheruku、Tamara L. Church、Anna Trifonova、Thomas Wartmann、Pher G. Andersson
DOI:10.1016/j.tetlet.2008.10.035
日期:2008.12
The asymmetrichydrogenation of N,N-dialkyl and N-alkyl-N-aryl enamines to chiral tertiary amines was studied. All the N,P-ligated iridium complexes investigated were active catalysts for the reaction, but only those with bicycle-supported oxazoline-phosphine ligands gave reasonable stereoinduction. The best catalyst produced a range of chiral tertiary amines in up to 87% ee.