for the alkylation of amines using alcohols as alkylating agents. Catalysts 1, 2 and 3a gave excellent yields of up to 99% for the alkylation of various amines using benzylic and aliphatic alcohols at 130 °C for 18 h undersolventlessconditions. Catalyst 3a bearing both phosphine and carbene ligands gave excellent yields of up to 98% for the synthesis of heterocyclic amines by double alkylation of primary
作者:Kai Chen、Qi-Kai Kang、Yuntong Li、Wen-Qiang Wu、Hui Zhu、Hang Shi
DOI:10.1021/jacs.1c12622
日期:2022.1.26
availability of both phenols and amines, aniline synthesis through direct coupling between these starting materials would be extremely attractive. Herein, we describe a rhodium-catalyzed amination of phenols, which provides concise access to diverse anilines, with water as the sole byproduct. The arenophilic rhodium catalyst facilitates the inherently difficult keto–enol tautomerization of phenols by means of
Nickel-mediated amination chemistry. Part 1: Efficient aminations of (het)aryl 1,3-di and 1,3,5-trichlorides
作者:Christophe Desmarets、Raphaël Schneider、Yves Fort
DOI:10.1016/s0040-4039(00)00276-8
日期:2000.4
The first Ni-catalysed synthesis of di- and triamino substituted benzenes and diamino substitutedpyridines from the corresponding aryl chlorides and amines is described.
Palladium-catalyzed amination of aryl dibromides with secondary amines: synthetic and mechanistic aspects
作者:Irina P. Beletskaya、Alla G. Bessmertnykh、Roger Guilard
DOI:10.1016/s0040-4039(99)01246-0
日期:1999.8
Diaminobenzenes are obtained starting from m- and p-dibromobenzenes and secondary amines in the presence of Pd(dba)2/P(o-tolyl)3and sodium tert-butoxide in moderate to good yields. Reductive dehalogenation of aryl dibromides is a major side reaction under these conditions. The study of this reaction has shown that the formation of reductive dehalogenation products occurs according to two independent ways. The
Manipulation of the reduction potentials of Wurster's blue derivatives via steric and conformational effects
作者:Anthony J. Pearson、Ann M. Gelormini
DOI:10.1016/s0040-4039(97)01091-5
日期:1997.7
and 2-alkyl tetra-alkyl-p-phenylenediamines have been prepared. The amine/amine·+ first redox couple has been determined for each member of the series and is influenced by remote steric, electronic, and conformationaleffects.