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 %.
Certain compounds of formula (I) below or a pharmaceutically acceptable salt or hydrate thereof:
1
a process for preparing such compounds, a pharmaceutical composition comprising such compounds and the use of such compounds and composition in medicine.
Certain compounds of formula (I) below or a pharmaceutically acceptable salt or hydrate thereof: a process for preparing such compounds, a pharmaceutical composition comprising such compounds and the use of such compounds and composition in medicine.
Enantioselective synthesis of α,α-disubstituted amines from nitroalkenes
作者:Mary-Lorène Leroux、Thierry Le Gall、Charles Mioskowski
DOI:10.1016/s0957-4166(01)00323-8
日期:2001.7
Disubstituted nitroalkenes were converted into enantiomerically enriched amines (isolated as their hydrochloride salts) with enantiomeric excesses of 88 to > 95% in three steps: (a) highly stereoselective conjugate addition of the potassium salt of 4-phenyloxazolidin-2-one; (b) radical-mediated removal of the nitro group: (c) cleavage of the oxazolidinone. (C) 2001 Elsevier Science Ltd. All rights reserved.
La Manna; Ghislandi; Hulbert, Farmaco, Edizione Scientifica, 1967, vol. 22, # 12, p. 1037 - 1053