887642-39-9

Upstream product

• 887642-30-0 N-benzyl-2-hydroxy-2-p-tolylacetamide 
• 88333-03-3 Benzyl isocyanide 
• 104-87-0 4-methyl-benzaldehyde 
• 1383533-50-3 C₂₁H₂₃NO₂ 
• 201230-82-2 carbon monoxide 
• 624-31-7 4-tolyl iodide 
• 100-46-9 benzylamine 
• 7163-50-0 (4-methylphenyl)(oxo)acetic acid 
• 25855-99-6 1-(4-methylphenyl)-3-phenyl-1,3-propanedione 
• 7391-28-8 p-tolueneacetonitrile 
• 105457-91-8 2-oxo-2-(p-tolyl)acetyl chloride 

Relevant academic research and scientific papers

Copper-catalysed synthesis of alkylidene 2-pyrrolinone derivatives from the combination of α-keto amides and alkynes

A Cu(i)-catalysed addition and cyclisation sequence has been developed for the synthesis of (E)-alkylidene pyrrolinone derivatives. The reactions incorporate simple α-keto amides and alkynes as substrates, and employ a commercially available Cu(i) catalyst. The process tolerates good variation of both starting materials, and delivers the desired pyrrolinones in good yields, with high levels of stereocontrol.

Diversification of α-ketoamides: Via transamidation reactions with alkyl and benzyl amines at room temperature

A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl amines in the absence of a catalyst, base, or additive. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3. The reactions proceede

Visible-light-mediated metal-free decarboxylative acylations of isocyanides with α-oxocarboxylic acids and water leading to α-ketoamides

An efficient visible-light-promoted approach for preparing α-ketoamides from α-oxocarboxylic acids, isocyanides and water is disclosed. The present transformation could be achieved under mild and metal-free conditions through a sequence of decarboxylation

Selective amidation by a photocatalyzed umpolung reaction

A metal-catalyzed organic transformation merged with another organophotocatalyst has been developed under mild conditions for production of α-ketoamides. CuI-catalyzed highly selective and rapid COCH2-amidation in the presence of electrophilic CαO bonds, which is synchronized by an eosin Y (EY)-photocatalyst, furnishes a wide range of labile α-ketoamides, unsymmetrical oxalamides and chiral analogues on the treatment of 1,3-dicarbonyls with amines, PhIO and LED light at room temperature. The current strategy opens up a new avenue to making photocatalysis a common synthetic tool for large-scale production in academia and industry.

Synthesis of α-Ketoamides from β-Ketonitriles and Primary Amines: A Catalyst-Free Oxidative Decyanation–Amidation Reaction

AN oxidative decyanation–amidation of β-ketonitriles and primary amines readily occurs using hydrogen peroxide sodium carbonate adduct (Na2CO3·1.5H2O2), K2CO3, and 1,4-dioxane. This reactio

Versatile Heterogeneous Palladium Catalysts for Diverse Carbonylation Reactions under Atmospheric Carbon Monoxide Pressure

Herein, we report a versatile carbonylation protocol using heterogeneous Pd0 nanoparticles supported on the metal–organic frameworks (MOFs) MIL-88B-NH2 (Fe/Cr). The synthesis of a vast array of carbonyls, which includes amides, esters, carboxylic acids, and α-ketoamides, was achieved through mono- and dicarbonylation reactions. The selectivity could be controlled simply by tuning the reaction conditions. Superior activity and selectivity were recorded in some cases compared to that achieved with commercial Pd/C. However, the utility of an elaborate catalyst support is questionable and important reactivity and recyclability issues are discussed.

In situ generated Pd(0) nanoparticles stabilized by bis(aryl)acenaphthenequinone diimines as catalysts for aminocarbonylation reactions in water

Aminocarbonylation of aryl iodides with aromatic and aliphatic amines, leading to formation of the corresponding amides, was efficiently carried out in water under 1?atm of CO using palladium nanoparticles (Pd NPs) formed in situ from [PdCl2(Ar2-BIAN)] complexes. The role of Ar2-BIAN ligands in the stabilization of Pd NPs was evidenced. The nature of the catalytically active species was confirmed by poisoning experiments, which highlighted that the catalyst is actually in the form of Pd NPs rather than soluble palladium complexes. In the aminocarbonylation of iodobenzene with substituted anilines good yields of amides were obtained, although the activity was depleted by the presence of substituents in the ortho positions of the aniline. On the other hand, in the reaction with aliphatic amines α-ketoamides were formed in addition to the amides. The selectivity towards α-ketoamides was increased by increasing the CO pressure to 10?atm, at equimolar amounts of PhI and amine. Pd NPs were successfully recovered after the catalytic reaction and recycled in five subsequent runs with only a marginal loss of activity after the fourth cycle.

Iodine-mediated oxidation of ynamides: A facile access to N-monosubstituted α-ketoamides and α-ketoimides

An efficient iodine-mediated oxidation reaction for ynamides has been developed to produce N-monosubstituted α-ketoamides and α-ketoimides. This oxidative method, which exhibits good functional group tolerance, was performed under mild conditions without a metal catalyst.

Asymmetric aerobic oxidation of α-hydroxy acid derivatives catalyzed by reusable, polystyrene-supported chiral N-salicylidene oxidovanadium tert-leucinates

The direct immobilization of two different C-5-propargyl ether-modified, chiral N-salicylidene vanadyl(V) tert-leucinates onto 4-azidomethyl-substituted polystyrene by click chemistry was examined. Among the eight different solvents investigated, the resulting polystyrene-supported catalysts promote the asymmetric, aerobic oxidation of α-hydroxy (thio)esters and amides with enantioselectivities of up to 99% ee (selectivity factor up to 41) in chloroform. These polystyrene-supported catalysts can be readily recovered by filtration and reused for at least four consecutive runs without discernible loss of reactivity and enantioselectivity.