Tag: M.W=100-150

Schmiegel, Carsten J. published the artcileContinuous Flow Synthesis of Azoxybenzenes by Reductive Dimerization of Nitrosobenzenes with Gel-Bound Catalysts, Safety of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is flow synthesis azoxybenzene reductive dimerization nitrosobenzene gel bound catalyst.

In the search for a new synthetic pathway for azoxybenzenes with different substitution patterns, an approach using a microfluidic reactor with gel-bound proline organocatalysts under continuous flow is presented. Herein the formation of differently substituted azoxybezenes by reductive dimerization of nitrosobenzenes within minutes at mild conditions in good to almost quant. yields is described. The conversion within the microfluidic reactor is analyzed and used for optimizing and validating different parameters. The effects of the different functionalities on conversion, yield, and reaction times are analyzed in detail by NMR. The applicability of this reductive dimerization is demonstrated for a wide range of differently substituted nitrosobenzenes. The effects of these different functionalities on the structure of the obtained azoxyarenes are analyzed in detail by NMR and single-crystal X-ray diffraction. Based on these results, the turnover number and the turnover frequency were determined

European Journal of Organic Chemistry published new progress about Aromatic compounds, nitroso Role: RCT (Reactant), RACT (Reactant or Reagent). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Safety of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Chen, Shangqing published the artcileEfficient transformation of CO2 into quinazoline-2,4(1H,3H)-diones at room temperature catalyzed by a ZnI2/NEt3 system, Application of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is aminobenzonitrile carbon dioxide zinc triethylamine cyclocondensation catalyst room temperature; quinazolinedione preparation.

The readily available ZnI2/NEt3 system was used firstly to catalyze the transformation of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones at room temperature and low CO2 pressure in high yields. Further experiments indicated that this ZnI2/NEt3 system has excellent effects on activating both amino and cyano groups.

New Journal of Chemistry published new progress about Aromatic nitriles Role: RCT (Reactant), RACT (Reactant or Reagent) (2-amino). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Application of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Vorobyev, P. B. published the artcileRole of theory acids and bases in the forming concepts of the mechanism catalytic oxidation and oxidative ammonolysis, Application of Picolinonitrile, the main research area is methyl pyridine catalytic oxidation oxidative ammonolysis.

Exptl. data of oxidation and oxidative ammonolysis the isomeric methylpyridines in the presence of vanadium oxide catalysts, it was found that the reactivity of substrates increases in the following sequence: 3-methylpyridine < 2-methylpyridine < 4-methylpyridine. The obtained exptl. results of relative reactivity of initial compounds were interpreted by the theory of acids and bases. It was shown that among the isomeric methylpyridines, increase of basicity which influence to adsorpting ability in the same order as the basicity and the CH-acidity of substrates calculated using non-empirical quantumchem. methods. Khimicheskii Zhurnal Kazakhstana published new progress about Acids Role: FMU (Formation, Unclassified), FORM (Formation, Nonpreparative). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Application of Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Liu, Fusheng published the artcileSuccinimide-Based Ionic Liquids: An Efficient and Versatile Platform for Transformation of CO2 into Quinazoline-2,4(1H,3H)-diones under Mild and Solvent-Free Conditions, Safety of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is aminobenzonitrile carbon dioxide succinimide based ionic liquid cyclocondensation catalyst; quinazolinedione preparation green chem.

Multifunctional succinimide-based ionic liquids (SIILs) were well-designed and synthesized, and they were used as a dual solvent-catalyst for efficient transformation of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones under mild conditions. The catalytic behaviors, including the effects of anion-cation structures and reaction parameters, catalyst recyclability, and versatility were thoroughly studied. The optimum [HTMG][Suc] comprising a tetramethylguanidine cation and a succinimide anion showed excellent activity toward various substituted 2-aminobenzonitrile substrates. [HTMG][Suc] was easily recyclable with superior structural integrity. The possible pathways of CO2 and 2-aminobenzonitrile activated by [HTMG][Suc] were investigated in depth, which supported the reaction mechanism well. In comparison with reported catalysts, the protocol herein exhibited comparable catalytic performance under milder and greener conditions without any addnl. organic solvents.

ACS Sustainable Chemistry & Engineering published new progress about Cyclocondensation reaction. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Safety of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Mikshiev, Vladimir Y. published the artcileperi-Interactions in 1,8-bis(dimethylamino)naphthalene ortho-ketimine cations facilitate [1,5]-hydride shift: selective synthesis of 1,2,3,4-tetrahydrobenzo[h]quinazolines, Recommanded Product: Picolinonitrile, the main research area is selective tetrahydrobenzoquinazoline preparation density functional theory; bis dimethylamino naphthalene ketimine heterocyclization.

Selective heterocyclization leading to 1,2,3,4-tetrahydrobenzo[h]quinazolines I (R1 = H, Br; R2 = Ph, n-Bu, furan-2-yl, etc.) from ortho-ketimines of 1,8-bis(dimethylamino)naphthalene (DmanIms) II under acid catalysis has been revealed. In contrast to the rather unreactive N,N-dimethylaniline ortho-ketimine II, DmanIms readily undergo this transformation without an addnl. catalyst. This distinction in the reactivity underscores the importance of the second peri-NMe2 group in DmanIms, which facilitates a [1,5]-hydride shift and the subsequent cyclization. The cascade of peri-interactions emerging between 1-NMe2 and 8-NMe2 groups has been identified as a reason for the catalytic effect: (1) the hydrogen bond in the DmanIm dication constrains 1-NMe2 in the desired position providing proximity of reaction centers, (2) the repulsion of the lone pairs of 8-NMe2 group and unrelaxed 1-NMe2 group arising right after deprotonation process reduces the Gibbs free energy of activation (ΔG) for the straight hydride shift, and (3) the electrostatic interaction between 8-NMe2 and the charged N=CH2+ group in the intermediate increases the ΔG for the reverse hydride shift.

Organic & Biomolecular Chemistry published new progress about Density functional theory, B3LYP. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Recommanded Product: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Mashweu, Adelaide R. published the artcileSubstrate profiling of the cobalt nitrile hydratase from Rhodococcus rhodochrous ATCC BAA 870, Name: 2-Aminobenzonitrile(Flakes or Chunks), the main research area is substrate profiling cobalt nitrile hydratase Rhodococcus rhodochrous ATCCBAA 870; biocatalysis; carboxamide; green chemistry; nitrile hydratase.

The aromatic substrate profile of the cobalt nitrile hydratase from Rhodococcus rhodochrous ATCC BAA 870 was evaluated against a wide range of nitrile containing compounds (>60). To determine the substrate limits of this enzyme, compounds ranging in size from small (90 Da) to large (325 Da) were evaluated. Larger compounds included those with a bi-aryl axis, prepared by the Suzuki coupling reaction, Morita-Baylis-Hillman adducts, heteroatom-linked diarylpyridines prepared by Buchwald-Hartwig cross-coupling reactions and imidazo[1,2-a]pyridines prepared by the Groebke-Blackburn-Bienayme multicomponent reaction. The enzyme active site was moderately accommodating, accepting almost all of the small aromatic nitriles, the diarylpyridines and most of the bi-aryl compounds and Morita-Baylis-Hillman products but not the Groebke-Blackburn-Bienayme products. Nitrile conversion was influenced by steric hindrance around the cyano group, the presence of electron donating groups (e.g., methoxy) on the aromatic ring, and the overall size of the compound

Molecules published new progress about Baylis-Hillman reaction. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Name: 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Shigeno, Masanori published the artcileDirect C-H carboxylation forming polyfunctionalized aromatic carboxylic acids by combined Bronsted bases, Related Products of nitriles-buliding-blocks, the main research area is polyfunctionalized methyl benzoate preparation; arene carbon dioxide carboxylation Bronsted base promoted.

CO2 fixation into electron-deficient aromatic C-H bonds proceeded with the combined Bronsted bases LiO-t-Bu and LiO-t-Am/CsF/18-crown-6 (t-Am = CEtMe2) under a CO2 atmosphere to afford a variety of polyfunctionalized aromatic carboxylic acid derivatives RCO2Me [R = 2,4,6-tri-BrC6H2, 2,3-di-ClC6H3, 2-O2NC6H4, etc.].

Organic Letters published new progress about Aromatic hydrocarbons Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kalashnikov, Valery V. published the artcile5-Phenyl- and 5,10-diphenyltetrabenzoporphyrins: Novel synthetic approach, physicochemical study with an emphasis on NMR spectroscopy, and identification of benzylated derivatives, COA of Formula: C8H4N2, the main research area is tetrabenzoporphyrin phenyl preparation NMR UV VIS.

Novel synthetic approach to low-symmetry meso-Ph substituted tetrabenzoporphyrins (TPBs) by Zn(OAc)2 templated assembly of phthalonitrile in the presence of benzyltriphenylphosphonium chloride has been proposed affording two main products: 5-phenyl-21H,23H-TBP (I) and 5,10-diphenyl-21H,23H-TBP (II) with higher yield for compound I. Procedure for isolation of I and II in individual high purity state has been developed supplemented with selection of an appropriate NMR solvent system (CDCl3 with 1% additive of CF3COOH) that allowed full signal assignment in 1H and 13C spectra to be made utilizing homonuclear 1H-1H (COSY, NOESY, TOCSY) and heteronuclear 1H-13C (HSQC) correlation techniques. Isolation and physicochem. study of a mixture of monobenzylated co-products were carried out as well involving 1D and 2D NMR spectroscopies, which for the first time allowed not only to find out their structure, but also to determine the ratio of the positional isomers formed.

Dyes and Pigments published new progress about NMR (nuclear magnetic resonance). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, COA of Formula: C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

O’Broin, Calvin Q. published the artcileSynthesis of 2-Amino-1,3-dienes from Propargyl Carbonates via Palladium-Catalyzed Carbon-Nitrogen Bond Formation, SDS of cas: 1885-29-6, the main research area is amine propargyl carbonate palladium catalyst carbon nitrogen bond dienylation; amino diene preparation.

A catalytic method to synthesize 1,3,-dienes from propargylic precursors is reported. This palladium-catalyzed carbon-nitrogen bond-forming reaction furnishes 2-amino-1,3-dienes in excellent yields (up to 98%) and shows a broad tolerance to functional group diversity. The reaction has been demonstrated for over 30 amine substrates, including anilines and indoles, and proceeds under mild neutral conditions. The resulting 1,3-dienes are of great synthetic interest because of their further reaction potential.

Organic Letters published new progress about Alkenylation (decarboxylative dienylation). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, SDS of cas: 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Huamani, Luis Enrique Santa Cruz published the artcileRole of Protonation and Isomerism in the Supramolecular Architectures of Heteroaryl-2-imidazole Compounds: Crystal Packing Patterns and Energetics, Name: Picolinonitrile, the main research area is azaarylimidazole isomer crystal structure packing protonation.

The influence of isomerism and protonation on crystal packing patterns of three isomeric heteroaryl-2-imidazoles and one related compound was investigated by using single-crystal X-ray diffraction and d. functional theory. The comparison of their crystal structures helped unveil the details of the energetic balance controlling supramol. packing and an unprecedented supramol. synthon. The neutral species were featured by a whole crystal close packing like a herringbone pattern, which was mainly favored by C-H···π interactions. On the other hand, the crystal packing of the protonated species was characterized by π-stacking layers being supported by π···π and anion-π interactions. Energy framework anal. revealed that both Coulombic interactions between hydrogen bond chains and dispersion energies mainly contributed to the stabilization of the herringbone pattern assembly, whereas a predominant contribution from Coulombic energy frameworks to total energy in protonated forms was observed The different patterns displayed pieces of evidence of not only the important participation of the heteroaryl moieties in the supramol. assembly but also the significant contribution of protonation hampering the N-H···N hydrogen bonding interactions in the imidazole group. A thorough characterization of the compounds by means of thermogravimetric anal., differential scanning calorimetry, Fourier-transform IR spectroscopy, NMR, and electrospray ionization-(+)-MS is also presented. The most characteristic crystal packing patterns of a series of N-heteroaryl-2-imidazole systems has been observed and analyzed. Neutral forms tend to pack in a herringbone pattern, whereas protonated forms tend to pack in parallel π-stacked layers. The imidazole fragments dominate the construction of the supramol. architectures through complex hydrogen bond networks. An unprecedented supramol. synthon was also found for one of the supramol. arrangements, and the energetics involved in the crystal packings was also assessed by theor. methods.

Crystal Growth & Design published new progress about Amines, salts Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Name: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts