6911-92-8

Upstream product

• 106-49-0 p-toluidine 
• 121-90-4 m-nitrobenzoic acid chloride 
• 99-61-6 3-nitro-benzaldehyde 
• 726-42-1 di-p-tolylcarbodiimide 
• 32578-25-9 trifluoromethanesulfonic acid 3-nitrophenyl ester 
• 99-08-1 1-methyl-3-nitrobenzene 
• 645-00-1 m-iodonitrobenzene 
• 3085-54-9 N-(4-methylphenyl)formamide 
• 121-92-6 3-nitrobenzoic acid 
• 621-00-1 1,3-di-p-tolylurea 

Downstream Products

• 860566-26-3 3-nitro-benzoic acid-(4-methyl-2,6-dinitro-anilide) 
• 14315-26-5 3-amino-N-(4-tolyl)benzamide 
• 645-09-0 3-nitrobenzamide 
• 6393-42-6 4-methyl-2,6-dinitroaniline 

Relevant academic research and scientific papers

CuO-decorated magnetite-reduced graphene oxide: a robust and promising heterogeneous catalyst for the oxidative amidation of methylarenes in waterviabenzylic sp3C-H activation

A magnetite-reduced graphene oxide-supported CuO nanocomposite (rGO/Fe3O4-CuO) was preparedviaa facile chemical method and characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), UV-vis spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), Brunauer-Emmett-Teller (BET) analysis, vibrating-sample magnetometry (VSM), and thermogravimetric (TG) analysis. The catalytic activity of the rGO/Fe3O4-CuO nanocomposite was probed in the direct oxidative amidation reaction of methylarenes with free amines. Various aromatic and aliphatic amides were prepared efficiently at room temperature from cheap raw chemicals usingtert-butyl hydroperoxide (TBHP) as a “green” oxidant and low-toxicity TBAI in water. This method combines the oxidation of methylarenes and amide bond formation into a single operation. Moreover, the synthesized nanocomposites can be separated from the reaction mixtures using an external magnet and reused in six consecutive runs without a noticeable decrease in the catalytic activity.

Nickel-Catalyzed Reductive Addition of Aryl/Benzyl Halides and Pseudohalides to Carbodiimides for the Synthesis of Amides

A Nickel-catalyzed reductive process is described for the direct amidation of benzyl and aryl halides using carbodiimides as the amidating agent. Moreover, aryl and benzyl C–O electrophiles such as triflate, acetate, tosylate, trityl ether, and pivalate were converted into amides using this method. The in-situ-generated Ni0acts as a catalyst for the reaction at room temperature for benzylic substrates, and 70 °C for aryl electrophiles. This new nickel-catalyzed reductive coupling protocol provides a general and operationally simple method for the synthesis of diverse amides using carbodiimides. Amides bearing bulky substituents can be synthesized by this strategy in high yield, which demonstrates its effectiveness in amide synthesis.

Palladium-Catalyzed Aminocarbonylation of Aryl Halides with 2,4,6-Trichloro-1,3,5-triazine/Formamide Mixed Reagent

In this work, the mixture of formamide and 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride or TCT) is introduced as a new amidating agent in Pd-catalyzed aminocarbonylation of aryl halides. In the presence of a catalytic amount of palladium and TCT/formamide reagent, a range of aryl halides (X = Cl, Br, I) were converted into amides efficiently in N,N-dimethylformamide at 120 °C. The 2,4,6-trichloro-1,3,5-triazine/formamide mixed reagent was found to be an efficient amidating agent in Pd-catalyzed aminocarbonylation of aryl halides. In the presence of this reagent and a catalytic amount of Pd, a range of amides were synthesized by using aryl halides.

Elaborate ligand-based pharmacophore exploration and QSAR analysis guide the synthesis of novel pyridinium-based potent β-secretase inhibitory leads

β-Secretase (BACE) inhibitors have potential as anti-Alzheimer's disease treatments prompting us to explore the pharmacophoric space of 129 known BACE inhibitors. QSAR analysis was employed to select optimal combination of pharmacophoric models and 2D physicochemical descriptors capable of explaining bioactivity variation (r2 = 0.88, F = 60.48, rLOO2 = 0.85, rPRESS2 against 25 external test inhibitors = 0.71). We were obliged to use ligand efficiency as the response variable because the logarithmic transformation of bioactivities failed to access self-consistent QSAR models. Three pharmacophoric models emerged in the successful QSAR equation suggesting at least three binding modes accessible to ligands within BACE binding pocket. QSAR equation and pharmacophoric models were validated through ROC curves and were employed to guide synthesis of novel pyridinium-based BACE inhibitors. The best inhibitor illustrated an IC50 value of 1.0 μM against BACE.

Direct oxidative amidation of aldehydes with anilines under mechanical milling conditions

(Chemical Equation Presented) Oxone is found to be an effective oxidant for the oxidative amidation of aldehydes with anilines to furnish amides in a one-pot process under mechanical milling conditions.

Intramolecular charge transfer with N-benzoylaminonaphthalenes. 1-Aminonaphthalene versus 2-aminonaphthalene as electron donors

N-(substituted-benzoyl)-1-aminonaphthalenes and N-(substituted-benzoyl)-2-aminonaphthalenes (1-NBAs and 2-NBAs) with varied substituents at the para- or meta-position of benzoylphenyl ring were prepared to probe the difference between 1-aminonaphthalene (1-AN) and 2-aminonaphthalene (2-AN) as electron donors, using benzanilide-like charge transfer as a probe reaction. An abnormal long-wavelength emission was found for all of the prepared aminonaphthalene derivatives in cyclohexane and was assigned to the CT state by the observation of a substantial red shift with increasing solvent polarity or with increasing electron-withdrawing ability of the substituent. The CT emission energies were found to follow a linear relationship with the Hammett constant of the substituent and the value of the linear slope for 1-NBAs (-0.45 eV) was higher than that of 2-NBAs(-0.35 eV), the latter being close to that of the aniline derivatives (BAs, -0.345 eV). This pointed to a higher extent of charge separation in the CT state of 1-NBAs in which a full charge separation was established by the reduction potential dependence of the CT emission energy with a linear slope of -1.00. The possible contribution of the difference in the steric effect and the electron donating ability of the donors in 1-NBAs and 2-NBAs was ruled out by the observation that the corresponding linear slopes of benzoyl-substituted BAs remained unchanged when para-, meta-, ortho-, or ortho, ortho-methyls were introduced into the aniline moiety. It was therefore concluded that 1-AN enhanced the charge transfer in 1-NBAs and the proximity of its 1La and 1Lb states was suggested to be responsible. Results showed that the charge transfers in 1-NBAs and 2-NBAs were not the same and 1-AN and 2-AN as electron donors were different not only in electron donating ability but in shaping the charge transfer pathways as well.

Substituted cyclic amine compound, production process thereof and pharmaceutical composition for circulatory organ use containing the same

A substituted cyclic amine compound represented by the following general formula (1) STR1 wherein each of R1 to R5 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or the like, A represents a carbonyl group or a sulfonyl group, B represents a methine moiety or a nitrogen atom, D represents a methine moiety, a nitrogen atom or =N(→O)-- and n is an integer of 2 to 3; and synthetic methods thereof. The inventive compound is useful in preventing and treating circulatory organ-related diseases such as hypertension, ischemic heart disease, cerebrovascular disease, peripheral circulatory disease and the like.

Palladium-catalysed heteroannulation of vinylic compounds: A highly convenient method for the synthesis of N-aryl-1,2,3,4-tetrahydro-1-oxoisoquinoline-3-carboxylic acids

N-Aryl-1,2,3,4-tetrahydro-1-oxoisoquinoline-3-carboxylic acids have been synthesized by facile palladium-catalysed olefination of N-aryl-2-iodobenzamides.