80143-72-2

Upstream product

• 39769-19-2 (4-fluorophenyl)(4-methylbenzylidene)amine 
• 104-87-0 4-methyl-benzaldehyde 
• 371-40-4 4-fluoroaniline 
• 589-18-4 4-Methylbenzyl alcohol 
• 104-82-5 4-Methylbenzyl chloride 

Downstream Products

• 75137-16-5 N-(4-Fluoro-phenyl)-N-(4-methyl-benzyl)-benzenesulfonamide 
• 1422969-39-8 N¹,N⁴-bis(4-fluorophenyl)-N¹,N⁴-bis(4-methylbenzyl)fumaramide 

Relevant academic research and scientific papers

HYDROGENATION OF IMINES WITH RU COMPLEXES

The present invention relates to the field of catalytic hydrogenation and to the use of ruthenium complexes having a bidentate diphosphine ligand or two monodentate phosphine ligands, two carboxylate ligands and optionally a diamine ligand in hydrogenatio

A microwave-assisted SmI2-catalyzed direct N-alkylation of anilines with alcohols

A new protocol for the alkylation of aromatic amines has been described using alcohols in the presence of SmI2 as a catalyst with the generation of water as the sole byproduct. The reaction proceeds under MW conditions and selectively generates monoalkylated amines. This protocol features a broad substrate scope and good functional-group tolerance with moderate to high yields.

Visible-Light Photocatalytic Synthesis of Amines from Imines via Transfer Hydrogenation Using Quantum Dots as Catalysts

CdSe/CdS core/shell quantum dots (QDs) can be used as stable and highly active photoredox catalysts for efficient transfer hydrogenation of imines to amines with thiophenol as a hydrogen atom donor. This reaction proceeds via a proton-coupled electron transfer (PCET) from the QDs conduction band to the protonated imine followed by hydrogen atom transfer from the thiophenol to the α-aminoalkyl radical. This precious metal free transformation is easy to scale up and can be carried out by a one-pot protocol directly from aldehyde, amine, and thiophenol. Additional advantageous features of this protocol include a wide substrate scope, high yield of the amine products, extremely low catalyst loading (0.001 mol %), high turnover number (105), and the mild reaction conditions of using visible light or sun light at room temperature in neutral media.

Tunable Triazole-Phosphine-Copper Catalysts for the Synthesis of 2-Aryl-1H-benzo[d]imidazoles from Benzyl Alcohols and Diamines by Acceptorless Dehydrogenation and Borrowing Hydrogen Reactions

Triazole-phosphine-copper complexes (TAP?Cu) have been synthesized and applied as tunable and efficient catalysts for the selective synthesis of fluoro-substituted 2-aryl-1H-benzo[d]imidazole and 1-benzyl-2-aryl-1H-benzo[d]imidazole derivatives from simple alcohols in only one step. TAP?Cu exhibited excellent and tunable catalytic activity for both dehydrogenation and borrowing hydrogen reactions with more than 80 examples being demonstrated for the first time. It was observed that the ligand played a critical role in catalyst activity. Mechanistic studies and deuterium labeling experiments indicated that the reactions proceeded by an initial and reversible alcohol dehydrogenation resulting in a copper hydride intermediate. This was also supported by the direct observation of a diagnostic copper hydride signal by solid-state infrared spectroscopy. The TAP?Cu-H complex showed absorptions at 912 cm?1 that could be assigned to copper?hydride stretches. Furthermore, the direct trapping of an intermediate bisimine was also successfully performed. (Figure presented.).

Synthesis and anticholinesterase activity of fumaramide derivatives

A series of fumaramide derivatives were synthesized from substituted benzanilines and their cholinesterase inhibitory activity was assayed according to Ellman's method using galanthamine-HBr as the reference compound. Most of the fumaramide compounds showed inhibitory activity of both cholinesterase enzymes. Compounds 29 (IC50 = 0.14 μM) and 30 (IC50 = 16.50 μM) were found to be the most active inhibitors on acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) enzymes, respectively. Molecular docking studies were performed with Surflex-Dock programme to provide the possible interactions between compounds and enzymes. A Lineweaver-Burk plot and molecular modelling studies showed that fumaramide compounds targeted both the catalytic anionic site and the peripheral anionic site of AChE. It was revealed that the nature of α,β-unsaturated 1,4-diketone moiety in fumaramide compounds brought about useful and efficient modification especially on AChE inhibition.

A metal nanoparticle-based supramolecular approach for aqueous biphasic reactions

β-cyclodextrin immobilized on Pd nanoparticles was successfully employed as an efficient phase-transfer catalyst in aqueous biphasic hydrogenation reactions. The Royal Society of Chemistry 2005.