85291-41-4

Upstream product

• 612-62-4 2-Chloroquinoline 
• 106-49-0 p-toluidine 
• 3867-18-3 2-vinylaniline 
• 622-58-2 p-Tolylisocyanate 
• 138386-53-5 C₂₆H₂₂NP 
• 703-61-7 2,4-dichloroquinoline 
• 2005-43-8 2-bromoquinoline 
• 1613-37-2 Quinoline N-oxide 
• 22693-32-9 4-methylbenzoyl azide 
• 91-22-5 quinoline 
• 726-42-1 di-p-tolylcarbodiimide 

Downstream Products

• 85291-54-9 4-Phenyl-2-p-tolyl-2,3-dihydro-1H-pyrimido<3,4-a>chinolin-1,3-dion 
• 85291-50-5 4-Benzyl-2-p-tolyl-2,3-dihydro-1H-pyrimido<3,4-a>chinolin-1,3-dion 

Relevant academic research and scientific papers

Site-Selective Deoxygenative Amination of Azine N-Oxides with Carbodiimides under Catalyst-, Activator-, Base-, and Solvent-Free Conditions

An operationally simple method for synthesizing 2-amino azines via [3+2] dipolar cycloaddition of azine N-oxide with carbodiimide has been demonstrated. The reaction can proceed smoothly under simple heating conditions without any transition metal catalyst, activator, base, and solvent. This transformation demonstrates a broad substrate scope and produces CO2 as the only co-product. The applicability of this method is highlighted by the late-stage modification of bioactive molecules, including quinine, (±)-α-tocopherol, and tryptamine modified quinoline.

Novel Production Method for Aminated Azine

[4] The present invention relates to a novel process for the preparation of bicyclic continuous ring compounds. To the present invention, the novel reactivity of acetal utilized as a unit structure for protecting an existing carbonyl group or hydroxyl gro

Deoxygenative Amination of Azine-N-oxides with Acyl Azides via [3 + 2] Cycloaddition

A transition-metal-free deoxygenative C-H amination reaction of azine-N-oxides with acyl azides is described. The initial formation of an isocyanate from the starting acyl azide via a Curtius rearrangement can trigger a [3 + 2] dipolar cycloaddition of polar N-oxide fragments to generate the aminated azine derivative. The applicability of this method is highlighted by the late-stage and sequential amination reactions of complex bioactive compounds, including quinidine and fasudil. Moreover, the direct transformation of aminated azines into various bioactive N-heterocycles illustrates the significance of this newly developed protocol.

Insights on bimetallic micellar nanocatalysis for buchwald-hartwig aminations

A nanocatalyst for micellar Buchwald-Hartwig aminations is developed, thoroughly characterized, and applied on a variety of substrates. The catalyst is stable under ambient conditions for at least six months. The catalyst retained its activity after several cycles, and its structure remained intact as confirmed by NMR spectroscopy. Association of Pd nanoparticles with Cu by a phosphine ligand is revealed by 31P NMR spectroscopy, and their linkage with the activated carbon surface is revealed by XAS analysis. Control NMR experiments revealed the binding of the ligand with both Cu and Pd, and all phosphine molecules are under the same environment. In addition to NMR and XAS analysis, the catalyst is characterized by SEM, HRTEM, XPS, and TGA. Reactions are highly reproducible at variable scales. Environmentally benign, proline-based amphiphile PS-750-M is critical for catalytic activity, which is achieved under mild conditions in water as the reaction medium. The inherent sustainability of these conditions coupled with a low E factor achievable through robust recycling of catalyst and reaction medium demonstrates the significant utility of this technology.

Efficient Synthetic Route to Access Linear and Angular Dibenzonaphthyridines

An efficient procedure has been proposed for the synthesis of linear and angular phenyl-substituted dibenzonaphthyridines from anilinoquinolines and benzoic acid in up to 85% yield using Eaton’s reagent (a solution of phosphorous pentoxide in methanesulfonic acid) as condensing agent instead of polyphosphoric acid which previously afforded less than 50% yield of the same compounds. Apart from benzoic acid, ethyl benzoate and benzoyl chloride can be used in the synthesis of dibenzonaphthyridines according to the proposed procedure, but the yields are lower.

Organonickel complexes encumbering bis-imidazolylidene carbene ligands: Synthesis, X-ray structure and catalytic insights on Buchwald-Hartwig amination reactions

New four coordinated homoleptic bis(diimidazolylidene)nickel(II) complexes (C1 & C2) were synthesized and characterized by elemental analysis, NMR (1H and13C) as well as ESI-Mass spectrometry. The molecular structure of the complex C1 was identified by means of single-crystal X-ray diffraction analysis, which revealed that the complexes possess a distorted square planar geometry with chelating bis(diimidazolylidene) NHC ligands and two non coordinating bromide counter ions in tetradentate C4fashion. A survey of their catalytic activity in Buchwald?Hartwig amination has been performed. The newly synthesized complexes also catalyzed the amination of aryl chlorides in the presence of KOtBu. Various aryl chlorides and amines can react smoothly to give the corresponding aminated products in moderate to high yields. The scope of the reaction encompasses electronically varied aryl chlorides and nitrogen-containing heteroaryl chlorides, including pyridine and quinoline derivatives. Both secondary and primary amines are well tolerated under the optimal reaction conditions.

Effect of substituents in the syntheses of phenyl-substituted dibenzonaphthyridines

A facile and elegant syntheses of linear and angular phenyl-substituted dibenzonaphthyridines from 2,4-dichloroquinolines through anilinoquinolines have been developed. The substituents in the 4th position of the anilinoquinoline and the temperature were found to play a vital role in the regulation of the yield towards the synthesis of the final compounds. The methyl group in the 7th position of the naphthyridin-11-ones was found to hinder the N-methylation reaction sterically, consequently increasing the reaction time than other derivatives.

Synthesis and anti-HCV activity evaluation of anilinoquinoline derivatives

Hepatitis C virus (HCV) infection is a main cause of chronic liver disease, leading to liver cirrhosis and hepatocellular carcinoma (HCC). The objective of our research was to develop effective agents against viral replication. Here, we have synthesized a

Arylation of adamantanamines: V. Palladium-catalyzed amination of isomeric chloroquinolines with diamines of the adamantane series

Palladium-catalyzed arylation of diamines of the adamantane series with isomeric 2-, 4-, and 6-chloroquinoline was studied, and optimal conditions for the synthesis of the corresponding N,N′-diaryl derivatives were found. N,N-Diarylation products of prima

Nickel(0)/dihydroimidazol-2-ylidene complex catalyzed coupling of aryl chlorides and amines

A general and simple nickel-catalyzed coupling of aryl chlorides and amines is reported. The scope and limitations of the coupling process using Ni(0), 1,3-bis(2,6-diisopropylphenyl)dihydroimidazol-2-ylidene, and NaO-t-Bu as base were investigated. Secondary cyclic and acyclic amines and anilines provided the arylamine coupling products in good to excellent yields. Compared to palladium-catalyzed aminations, this procedure offers an alternative route to N-substituted anilines starting from readily available aryl chlorides.