Reductive amination of ketones/aldehydes with amines using BH<sub>3</sub>N(C<sub>2</sub>H<sub>5</sub>)<sub>3</sub> as a reductant
作者:Qizhuang Zou、Fei Liu、Tianxiang Zhao、Xingbang Hu
DOI:10.1039/d1cc02618f
日期:——
first example of efficientreductiveamination of ketones/aldehydes with amines using BH3N(C2H5)3 as a catalyst and a reductant under mild conditions, affording various tertiary and secondary amines in excellent yields. A mechanistic study indicates that BH3N(C2H5)3 plays a dual function role of promoting imine and iminium formation and serving as a reductant in reductiveamination.
在此,我们报告了使用 BH 3 N(C 2 H 5 ) 3作为催化剂和还原剂在温和条件下用胺有效还原胺化酮/醛的第一个例子,以优异的产率提供各种叔胺和仲胺。机理研究表明,BH 3 N(C 2 H 5 ) 3具有促进亚胺和亚胺形成以及在还原胺化中作为还原剂的双重作用。
Synthesis of<i>N</i>-Alkylated Indolines and Indoles from Indoline and Aliphatic Ketones
aminations of indoline with aliphatic ketones using bismuth nitrate as catalyst is described. A reaction of an equivalent amount of indoline and aliphatic cyclic and acyclic ketones provides a mixture of excessive alkylated indolederivatives over typically redox isomerization and reductive alkylation pathways while using of the five equivalent of indoline provides N‐alkylated indolines as a reductive alkylation
QUINOLINE-DERIVED AMIDE MODULATORS OF VANILLOID VR1 RECEPTOR
申请人:Codd Ellen
公开号:US20080300236A1
公开(公告)日:2008-12-04
This invention is directed to vanilloid receptor VR1 ligands. More particularly, this invention relates to quinoline-derived amides that are potent antagonists or agonists of VR1 which are useful for the treatment and prevention of inflammatory and other pain conditions in mammals.
A one-pot reductive amination of aldehydes and ketones with amines using alpha-picoline-borane as a reducing agent is described. The reaction has been carried out in Wolf, in H2O, and in neat conditions in the presence of small amounts of AcOH. This is a highly efficient and mild procedure that is applicable for a wide variety of substrates. In particular, this is the first successful demonstration that this type of reaction can be carried out in water and in neat conditions. (C) 2004 Elsevier Ltd. All rights reserved.
A Mild Cu(I)-Catalyzed Oxidative Aromatization of Indolines to Indoles
作者:Feng Peng、Mark McLaughlin、Yizhou Liu、Ian Mangion、David M. Tschaen、Yingju Xu
DOI:10.1021/acs.joc.6b01854
日期:2016.10.21
A novel method for the oxidation of indolines to indoles is described. The method uses a Cu(I) catalyst and an organic percarbonate as the stoichiometric oxidant. The procedure was successfully applied at 0.5 kg scale in the production of a key intermediate in the synthesis of Elbasvir, which is a novel therapy for the treatment of hepatitis C virus infection.