Indium(III)-Catalyzed Addition of 1,3-Dicarbonyl Compounds to Alkenes
作者:Yu Yuan、Zhuangzhi Shi
DOI:10.1055/s-2007-992388
日期:——
A new InCl3-catalyzed addition reaction of 1,3-dicarbonyl compounds to various alkenes proceeded in good yields and can be carried out in air, which provided an easy and practical procedure for carbon-carbon bond formation.
BiCl3-Catalyzed Hydroamination of Norbornene with Aromatic Amines
作者:Hua Wei、Guimin Qian、Yuanzhi Xia、Kai Li、Yahong Li、Wu Li
DOI:10.1002/ejoc.200700483
日期:2007.9
A BiCl3-catalyzedhydroamination reaction of norbornene, in which a variety of electron-withdrawing groups were tolerated on amines, was presented. The current transformation possesses the advantages of being highly selective, cheap, and eco-friendly, and this process also represents a rare sys-tem for main-group Lewis acid catalyzed intermolecular hydroamination of unactivated alkenes. ((C) Wiley-VCH
a variety of alcohols with anilines, because the unique acidity of the H-mont catalyst effectively prevents the neutralization by the basic anilines. In addition, amides, indoles, 1,3-dicarbonyl compounds, and allylsilane act as nucleophiles for the H-mont-catalyzed substitutions of alcohols, which allowed efficient formation of various C−N and C−C bonds. The solid H-mont was reusable without any appreciable
Mono- vs. Dinuclear Gold-Catalyzed Intermolecular Hydroamidation
作者:Juan M. Serrano-Becerra、Alexander F. G. Maier、Sandra González-Gallardo、Eric Moos、Christoph Kaub、Maximilian Gaffga、Gereon Niedner-Schatteburg、Peter W. Roesky、Frank Breher、Jan Paradies
DOI:10.1002/ejoc.201402068
日期:2014.7
Mono- and dinuclear gold catalysts were investigated in the intermolecularhydroamidation of olefins. Upon activation of [Ph3PAuCl] and [xantphos(AuCl)2] with various silver salts (AgOTf, Ag[BF4], and Ag[SbF6]), diverging reactivity of the resulting cationic gold complexes was observed. It was found that both the binding ability of the counterion and the solvent have a significant impact on the reactivity
InBr3 has been demonstrated to be a simple catalyst for the intermolecular hydroamination of unactivated alkenes to produce tosyl- and mesyl-protected amines in moderate to good yields. (c) 2007 Elsevier Ltd. All rights reserved.