An efficient route to biaryls from aryl halides catalysed by subnanometrical 2,2′-bipyridine liganded Ni–Al clusters
摘要:
It has been shown that the new 2,2'-bipyridine liganded Ni-Al bimetallic clusters are efficient in promoting the catalytic homocoupling of (het)aryl chlorides and bromides. (C) 2001 Elsevier Science Ltd. All rights reserved.
Nickel-catalysed sequential amination of aryl- and heteroaryl di- and trichlorides
作者:Christophe Desmarets、Raphaël Schneider、Yves Fort
DOI:10.1016/s0040-4020(01)00730-x
日期:2001.9
Unsymmetrical 1,3-diaminobenzenes and diaminopyridines were efficiently prepared by reaction of 3-chloroanilines and chloroaminopyridines with amines via a nickel-catalysedamination. The Ni/2,2′-bipyridine catalyst is also effective for the sequential amination of aryl trichlorides. After a first selective monoamination of 1,3,5-trichlorobenzene, the obtained 3,5-dichloroanilines were subsequently transformed
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.
Nickel-catalysed synthesis of 3-chloroanilines and chloro aminopyridines via cross-coupling reactions of aryl and heteroaryl dichlorides with amines
作者:Christophe Desmarets、Raphaël Schneider、Yves Fort
DOI:10.1016/s0040-4039(00)01931-6
日期:2001.1
Selective monoamination of aryl and heteroaryl dichlorides has been carried out using a catalyst combination of Ni(0) associated to 2,2'-bipyridine. The synthesis of novel 3-chloroanilines and chloro aminopyridines in good to excellent yields is allowed using an excess of amine, 10 or 20 mol% catalyst and short reaction times. (C) 2000 Elsevier Science Ltd. All rights reserved.
The invention relates to 3-((hetero-)aryl)-8-amino-2-oxo-1,3-diaza-spiro-[4.5]-decane derivatives, their preparation and their use in medicine, particularly in the treatment of pain.