Ruthenium chloride, a new and efficient catalyst for direct amination of arenes with azodicarboxylates
作者:Suleman M. Inamdar、Vinod K. More、Sisir K. Mandal
DOI:10.1016/j.tetlet.2012.11.075
日期:2013.2
An efficient cross coupling amination of arene with azodicarboxylate to afford hydrazides catalysed by ruthenium chloride has been demonstrated. The catalyst was found to be effective across a spectrum of arenes with a variety of functional groups. The yields are found to be modest to low depending on the type of substrates. The catalyst can be recycled in ligand free conditions to afford the cross
method for intermolecular N-arylation of the anionic species derived from diisopropyl azodicarboxylate and sodiumhydride by aryl trifluoromethanesulfonates, in the presence of a ligand-free copper(I) oxide catalyst at 80 °C in N , N -dimethylformamide, is reported. A variety of functionalized aryl triflouromethanesulfonates were efficiently coupled by this method.
Cross-coupling reaction of aryl diazonium salts with azodicarboxylate using FeCl<sub>2</sub>
作者:M. Khalaj、M. Ghazanfarpour-Darjani
DOI:10.1039/c5ra15875c
日期:——
Arene diazonium salts have been employed as the aryl source in reaction with dialkyl azodicarboxylates to form N-aryl hydrazide derivatives. The optimum conditions are developed using FeCl2 in DMSO at 25 °C for 2 h. Various functional groups were tolerated under the optimum conditions.
Copper-catalyzed C–N bond formation using dialkyl azodicarboxylate as the amination reagent
作者:Alireza Samzadeh-Kermani
DOI:10.1016/j.tetlet.2015.12.036
日期:2016.1
An efficient copper-catalyzed reaction for C-N bond formation using aryl halides, dialkyl azodicarboxylate, and a hydride source is reported. Using this procedure, aryl iodides reacted at ambient conditions, while aryl bromides required heating to 60 degrees C to accomplish the transformation. Various functional groups were tolerated under the optimum conditions. (C) 2015 Elsevier Ltd. All rights reserved.
Phenanthroline Ligands in Aryl Palladium Hydrazinato Complexes: Catalysts for Efficient Coupling of Azo Componds with Aryl Boronic Acids