Ruthenium Catalyzed Direct Asymmetric Reductive Amination of Simple Aliphatic Ketones Using Ammonium Iodide and Hydrogen
作者:Tamal Ghosh、Martin Ernst、A. Stephen K. Hashmi、Thomas Schaub
DOI:10.1002/ejoc.202000750
日期:2020.8.16
On the direct asymmetric reductive amination of aliphatic ketones to primary amines: By using Ru‐Binaphane as catalyst and NH4I as the amine source, it is possible to aminate prochiral aliphatic ketones with moderate ee values up to 74 %.
Iridium-Catalyzed Intermolecular Hydroamination of Unactivated Aliphatic Alkenes with Amides and Sulfonamides
作者:Christo S. Sevov、Jianrong (Steve) Zhou、John F. Hartwig
DOI:10.1021/ja3052848
日期:2012.7.25
alkenes remains a challenging, but desirable, strategy for the synthesis of N-alkylamines. We report the intermolecular amination of unactivated α-olefins and bicycloalkenes with arylamides and sulfonamides to generate synthetically useful protected amine products in high yield. Mechanistic studies on this rare catalytic reaction revealed a resting state that is the product of N-H bond oxidative addition