Cesium Effect: High Chemoselectivity in Direct N-Alkylation of Amines
作者:Ralph Nicholas Salvatore、Advait S. Nagle、Kyung Woon Jung
DOI:10.1021/jo010643c
日期:2002.2.1
A novel method for the mono-N-alkylation of primary amines, diamines, and polyamines was developed using cesium bases in order to prepare secondaryamines efficiently. A cesium base not only promoted alkylation of primary amines but also suppressed overalkylations of the produced secondaryamines. Various amines, alkyl bromides, and alkyl sulfonates were examined, and the results demonstrated this
Nickel-Catalyzed Reduction of Secondary and Tertiary Amides
作者:Bryan J. Simmons、Marie Hoffmann、Jaeyeon Hwang、Moritz K. Jackl、Neil K. Garg
DOI:10.1021/acs.orglett.7b00683
日期:2017.4.7
The nickel-catalyzed reduction of secondary and tertiary amides to give amine products is reported. The transformation is tolerant of extensive variation with respect to the amide substrate, proceeds in the presence of esters and epimerizable stereocenters, and can be used to achieve the reduction of lactams. Moreover, this methodology provides a simple tactic for accessing medicinally relevant α-deuterated
Competing hydride transfer and ene reactions in the aminoalkylation of 1-alkenes with N,N-dimethylmethyleniminium ions. A literature correction
作者:Theodore Cohen、Anatoli Onopchenko
DOI:10.1021/jo00172a018
日期:1983.12
Direct N-alkylation of amines with alcohols using AlCl3 as a Lewis acid
作者:Ya-Qiong Li、Yun-Bin Chen、Zhi-Zhen Huang
DOI:10.1016/j.cclet.2014.07.006
日期:2014.12
A substitution reaction of amines with alcohols for N-alkylated amines has been developed using inexpensive AlCl3 without any ligand or additive. Either aromatic or aliphatic amines and primary or secondary alcohols perform the AlCl3-mediated reaction smoothly to afford various N-alkylated amines in satisfactory yields. (C) 2014 Zhi-Zhen Huang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Facile Reduction of Amides Using Nickel Catalysis: Reduction of 12-Aminododecanolactam