Polymer supported triazine based palladium complex catalyzed double carbonylation reaction of halo aryl compounds for the synthesis of α-ketoamides
作者:Sk Safikul Islam、Rostam Ali Molla、Sabyasachi Ta、Nasima Yasmin、Debasis Das、Sk Manirul Islam
DOI:10.1016/j.jorganchem.2018.12.008
日期:2019.3
Novel polystyrene incorporated Palladium (II) catalyst was developed and well characterized. The efficiency of the supported Pd(II) catalytic material was checked for double carbonylation reaction of 2° amines and aryl iodides to their corresponding α-ketoamides under high pressure reactionconditions. The reaction was carried out in 60 psi carbonmonoxide pressure. An extensive variety of aryl iodides
Synthesis of<i>Ortho</i>-alkoxy-aryl Carboxamides via Palladium-Catalyzed Aminocarbonylation
作者:Attila Takács、Artur R. Abreu、Andreia F. Peixoto、Mariette Pereira、László Kollár
DOI:10.1080/00397910802542028
日期:2009.4.7
Abstract Various aryl carboxamides with alkoxy substituents at the ortho-position, applicable as direct intermediates toward novel ligands, were synthesised viaaminocarbonylation of aryl-iodides (2-iodoanisole, 5-chloro-7-iodo-8-methoxy-quinoline, and 5-chloro-7-iodo-8-benzyloxy-quinoline) in the presence of in situ generated palladium(0) catalysts. Simple primary and secondary amines as well as aminoacid
for the simple copper‐catalyzedα‐amination of α‐aminocarbonyl compounds to afford 2‐amino‐2‐iminocarbonyl and 2‐amino‐2‐oxocarbonyl compounds is reported. This transformation is achieved by C(sp3)−H and N−H bond oxidative cross‐coupling and selective C−N bond oxidative cleavage. This reaction system has a broad reaction scope, providing a facile pathway for the α‐functionalization of α‐amino ketones
Phosphine-Free, Efficient Double Carbonylation of Aryl Iodides with Amines Catalyzed by Water-Insoluble and Water-Soluble N-Heterocyclic Carbene-Amine Palladium Complexes
AbstractThe water‐insoluble and water‐soluble N‐heterocyclic carbene (NHC)–amine palladium complexes, Ipr‐Pd(deba)Cl and SO3‐Ipr‐Pd(deba)Cl, were synthesized. Both catalysts exhibit excellent activity in the phosphine‐free double carbonylation of aryl iodides with amines to produce α‐keto amides. Moreover, as the water‐soluble catalyst exhibits significant compatibility in the aqueous phase with the activities of different Pd‐NHC complexes, we conclude that the intramolecular amine ligand strongly affects the selectivity of the products in double carbonylation reaction and serves as an alternative of phosphine ligands.magnified image