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.
描述了由相应的芳基氯化物和胺进行的第一个Ni催化的二氨基和三氨基取代的苯和二氨基取代的吡啶的合成。
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.
Streamlined Synthesis of Diaminopyridines by Pd‐Catalyzed Ammonia Coupling with Deactivated Amino‐Chloropyridines
synthetic strategy is the development of an unprecedented palladium‐catalyzedcoupling reaction of ammonia with chloropyridinesdeactivated by the presence of an alkylamino substituent. The coupling reaction was accomplished with very low catalyst loadings under remarkably mild reaction conditions, making the system particularly suitable for both academic and industrial applications. The utility of this methodology