N-TMS-β,β-difluoroenamines: Electrochemical preparation and its transformation
摘要:
The first preparation of N-trimethylsilylated beta,beta-difluoroenamines (2) from the trifluoromethyl imines (1) by electrochemical reduction and a preliminary study on alkylation of 2 for the synthesis of difluoromethylene compounds are described. (C) 1998 Elsevier Science Ltd. All rights reserved.
Enantioselective Synthesis of α-Trifluoromethyl Arylmethylamines by Ruthenium-Catalyzed Transfer Hydrogenation Reaction
作者:Xiaoyang Dai、Dominique Cahard
DOI:10.1002/adsc.201301115
日期:2014.4.14
A simple combination of dichloro(para‐cymene)ruthenium(II) dimer, a chiral amino alcohol and isopropyl alcohol allowed for in‐situ generation of the bifunctional catalyst responsible for the transfer hydrogenation reaction of trifluoromethyl ketimines in excellent yields with high enantioselectivities (up to 93% ee). Herein, we describe the optimization, scope, limitations, and applications of the
First synthesis of 3,3-difluoroserine and cysteine derivatives via Mg(0)-promoted selective CF bond cleavage of trifluoromethylimines
作者:Masayuki Mae、Hideki Amii、Kenji Uneyama
DOI:10.1016/s0040-4039(00)01350-2
日期:2000.10
3,3-Difluoroserine and cysteine derivatives were synthesized via Mg(0)-promoted defluorination of trifluoromethylimines as a key step, followed by addition of alcohols and sulfenyl chloride, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.