Category: 1452-77-3

Wang, Kaizhi; Jiang, Pengbo; Yang, Ming; Ma, Ping; Qin, Jiaheng; Huang, Xiaokang; Ma, Lei; Li, Rong published the article 《Metal-free nitrogen -doped carbon nanosheets: a catalyst for the direct synthesis of imines under mild conditions》. Keywords: transfer hydrogenation nitrile nitrogen doped carbon nanocatalyst; imine preparation amine oxidation nitrile nitrogen doped carbon nanocatalyst.They researched the compound: Picolinamide( cas:1452-77-3 ).SDS of cas: 1452-77-3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1452-77-3) here.

Herein, a highly stable, porous, multifunctional and metal-free catalyst was developed, which exhibited significant catalytic performance in the oxidation of amines and transfer hydrogenation of nitriles under mild conditions; this could be attributed to the presence of numerous active sites and their outstanding BET surface area. The obtained results showed that most of the yields of imines exceeded 90%, and the cycling performance of the catalyst could be at least seven runs without any decay in the reaction activity, which could be comparable to those of metal catalysts. Subsequently, a kinetic study has demonstrated that the apparent activation energy for the direct synthesis of imines from amines is 67.39 kJ mol-1, which has been performed to testify that the catalytic performances are rational. Via catalyst characterizations and exptl. data, graphitic-N has been proven to be the active site of the catalyst. Hence, this study is beneficial to comprehend the mechanism of action of a metal-free N-doped carbon catalyst in the formation of imines.

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Tetrahydroisoquinoline – Wikipedia,
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Electric Literature of C6H6N2O. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Aerobic Activation of C-H Bond in Amines Over a Nanorod Manganese Oxide Catalyst. Author is Wang, Hai; Wang, Liang; Wang, Sai; Dong, Xue; Zhang, Jian; Xiao, Feng-Shou.

The development of heterogeneous catalysts for the synthesis of pharmaceutically relevant compounds is always important for chem. research. Here, we report a selective aerobic oxidation of aromatic and aliphatic amines to corresponding amides over a nanorod manganese oxide (NR-MnOx) catalyst. The kinetic studies reveal that the NR-MnOx catalyzed amine-to-amide reaction proceeds the oxidative dehydrogenation of the amines into nitriles, followed by hydrolysis of nitrile into amides. The NR-MnOx exhibits fast kinetics and high selectivities in these steps, as well as hinders the byproduct formation. More importantly, the NR-MnOx catalyst is stable and reusable in the continuous recycle tests with water as a sole byproduct, exhibiting superior sustainability and significant advancement to outperform the traditional amide production route in acidic or basic media with toxic byproducts.

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Tetrahydroisoquinoline – Wikipedia,
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Gupta, Nikitra N.; Punekar, Amrin S.; Raj, Karthik Raja E. K.; Ghodekar, Medha M.; Patil, Vipul S.; Gopinath, Chinnakonda S.; Raja, Thirumalaiswamy published the article 《Phase Transfer Ceria-Supported Nanocatalyst for Nitrile Hydration Reaction》. Keywords: ceria supported rare earth metal oxide preparation characterization; nitrile hydration reaction phase transfer catalyst.They researched the compound: Picolinamide( cas:1452-77-3 ).Recommanded Product: Picolinamide. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1452-77-3) here.

The present study elaborates the catalytic effect of rare-earth metal oxides (Sm2O3 and La2O3) over ceria as a support phase transfer catalyst. The synthesized catalysts have been subjected to different characterization techniques, such as field-emission SEM, high-resolution transmission electron microscopy, powder X-ray diffraction, N2 adsorption-desorption (BET surface anal.), temperature-programmed desorption study (NH3/CO2-TPD), Fourier transform IR, Raman anal., and XPS to get better insights into the catalytic activity of the catalysts for hydration of nitrile.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 1452-77-3, is researched, Molecular C6H6N2O, about Activation of nitriles by silver(I) N-heterocyclic carbenes: An efficient on-water synthesis of primary amides, the main research direction is silver NHC catalyst preparation; nitrile silver NHC catalyst hydration; primary amide preparation.Related Products of 1452-77-3.

A first example of silver(I) N-heterocyclic carbene (Ag(I)-NHC) catalyzed on-water synthesis of primary amides by hydration of nitriles under mild reaction conditions was described. This organometallic catalytic system has excellent tolerance for various homo-aromatic, hetero-aromatic and aliphatic nitriles to afford primary amides in good yields in neat water.

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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Crystal structures of three N-(pyridine-2-carbonyl)pyridine-2-carboxamides as potential ligands for supramolecular chemistry, published in 2021-09-01, which mentions a compound: 1452-77-3, mainly applied to crystal mol structure hydrogen bond length; N-(pyridine-2-carbon­yl)pyridine-2-carboxamide; crystal structure; fluorine moieties; supra­molecular chemistry, Category: tetrahydroisoquinoline.

The synthesis and single-crystal X-ray structures of three N-(pyridine-2-carbonyl)pyridine-2-carboxamide imides, with or without F atoms on the 3-position of the pyridine rings are reported, namely, N-(pyridine-2-carbonyl)pyridine-2-carboxamide, C12H9N3O2 (1), N-(3-fluoropyridine-2-carbonyl)pyridine-2-carboxamide, C12H8FN3O2 (2), and 3-fluoro-N-(3-fluoropyridine-2-carbonyl)pyridine-2-carboxamide, C12H7F2N3O2 (3). The above-mentioned compounds were synthesized by a mild, general procedure with an excellent yield, providing straightforward access to sym. and/or asym. heterocyclic ureas. The crystal structures of 1 and 2 are isomorphous, showing similar packing arrangements, i.e. double layers of parallel (face-to-face) mols. alternating with analogous, but perpendicularly oriented, double layers. In contrast, the crystal structure of 3, containing a fluoro- group at the 3-position of both pyridine rings, shows mol. arrangements in a longitudinal, tubular manner along the c axis, with the aromatic pyridine and carbonyl/fluorine moieties facing towards each other.

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Alvarez-Bermudez, Olaia; Torres-Suay, Ana; Perez-Pla, Francisco F. published an article about the compound: Picolinamide( cas:1452-77-3,SMILESS:O=C(N)C1=NC=CC=C1 ).Recommanded Product: 1452-77-3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:1452-77-3) through the article.

The heterogeneous catalysis of the hydration of nitriles to amides is a process of great industrial relevance in which cerium(IV) oxide (also referred to as ceria) has shown an outstanding catalytic performance. The use of non-supported ceria nanoparticles is related to difficulties in the purification of the product and the recovery and recyclability of the catalyst. Therefore, in this work, ceria nanoparticles are supported on a polymer matrix either by synthesizing polymer particles by so-called Pickering miniemulsions while using ceria nanoparticles as emulsion stabilizers or, as a comparison, by in-situ crystallization on preformed polymer particles. The former strategy presents significant advantages over the latter in terms of time and consumption of resources, and it facilitates an easier scale-up of the process. In both strategies, the incorporation of a magnetoresponsive core within the polymer matrix allows the recovery and the recycling of the catalyst by simple application of a magnetic field and offers an enhancement of the catalytic efficiency.

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Tetrahydroisoquinoline – Wikipedia,
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Formula: C6H6N2O. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Half-sandwich ruthenium(II) complexes containing O, N bidentate azo ligands: Synthesis, structure and their catalytic activity towards one-pot conversion of aldehydes to primary amides and transfer hydrogenation of ketones. Author is Nandhini, Raja; Venkatachalam, Galmari.

Ruthenium(II) complexes of the general formula [Ru(η6-p-cymene)(Cl)(L1-5)] (L = O, N-donors of biphenylazo derivatives), were synthesized via reacting 2-(biphenylazo)phenols and 1-(biphenylazo)naphthol ligands with [{η6-(p-cymene)RuCl}2(μ-Cl)2]. The synthesized complexes could act as an efficient, reusable homogeneous catalyst for transformation of aldehydes to the corresponding primary amides ArC(O)NH2 [Ar = Ph, 4-MeC6H4, 2-pyridyl, etc.] in the presence of NH2OH·HCl, thus resulted an expansion of Beckmann rearrangement. They also effectively catalyzed the transfer hydrogenation reaction of various ketones with KOH in presence of 2-propanol to afford RCHOHR1 [R = Et, n-Pr, Ph, 4-MeOC6H4; R1 = Me, Ph; R1R2 = (CH2)5, (CH2)6].

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Ahmad, Kaleem; Dixit, Vivek published an article about the compound: Picolinamide( cas:1452-77-3,SMILESS:O=C(N)C1=NC=CC=C1 ).Quality Control of Picolinamide. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:1452-77-3) through the article.

It is well known fact that the bonding occurs at oxygen atom in the Amides compounds In order to prove this fact we have considered eighteen Amides compounds Present study deals to calculate their Eigen value using Quantum Mech. descriptors via Cache software. With the help of Eigen values, the concentrations of electrons on oxygen and nitrogen atoms of Amides compounds have been calculated In Amides compounds, the sum of contributions of p-orbitals of oxygen atom in the formation of MOs is smaller as compared to other atoms. This indicates that the bonding takes place at oxygen atom.

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Recommanded Product: 1452-77-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Understanding the extraction behaviour of UO2+2 and Th4+ using novel picolinamide/N-oxo picolinamide in ionic liquid: A comparative evaluation with molecular diluent. Author is Das, Debasish; Hashmi, Sabiha; Sengupta, Arijit; Kannan, S.; Kaushik, C. P..

The manuscript deals with efficient separation of hexavalent UO2+2 and tetravalent Th4+ from aqueous acidic waste solution in green way using ionic liquid with novel picolinamide (L I) and N-oxo picolinamide (L II) based ligands. A comparative evaluation was carried out to understand the extraction mechanism, kinetics, thermodn., speciation, radiolytic stability and stripping behavior of UO2+2 and Th4+ in ionic liquid vis-a-vis mol. diluent. The investigation demonstrates the predominance of cation exchange mechanism in ionic liquid and solvation mechanism in n-dodecane based systems. The slower extraction kinetics in ionic liquid was attributed to the viscosity effect. The extractive mass transfer processes were found to be spontaneous, endothermic and entropically driven in nature. The picolinamide and N-oxo picolinamide ligands were found to form inner-sphere complexes in ionic liquid as well as n-dodecane. The CO2-3 was more effective aqueous phase complexing agent to back extract UO2+2, while C2O2-4 exhibited the same for Th4+.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Computed Properties of C6H6N2O. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Half-sandwich ruthenium(II) complexes containing biphenylamine based Schiff base ligands: Synthesis, structure and catalytic activity in amidation of various aldehydes. Author is Nagalakshmi, Veerasamy; Nandhini, Raja; Brindha, Veerappan; Krishnamoorthy, Bellie Sundaram; Balasubramani, Kasthuri.

New half-sandwich ruthenium (II) complexes [(η6-p-cymene)Ru (L1-3)Cl] (1-3) containing biphenylamine based Schiff base ligands (HL1-3) have been synthesized and characterized by anal. and spectroscopic methods. Addnl., the solid state structure of 2 has been determined by single crystal X-ray diffraction study. The complex 2 serves as a catalyst for the amidation of various aldehydes to amides in good yield.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem