Category: pyridine-derivatives

An article Reductive amination using cobalt-based nanoparticles for synthesis of amines WOS:000520399300001 published article about GENERAL-SYNTHESIS; HYDROGENATION; CATALYSTS; KETONES; AMMONIA; NANOCATALYSTS; GREEN in [Jagadeesh, Rajenahally, V; Beller, Matthias] Leibniz Inst Katalyse eV, Rostock, Germany; Univ Rostock, Rostock, Germany in 2020.0, Cited 42.0. Recommanded Product: 500-22-1. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1

Reductive amination is essential to the preparation of amines (e.g., pharmaceuticals and industrial products). This protocol shows how to prepare and use graphitic shell-encapsulated cobalt-based nanoparticles as catalysts for this reaction. Reductive aminations are an essential class of reactions widely applied for the preparation of different kinds of amines, as well as a number of pharmaceuticals and industrially relevant compounds. In such reactions, carbonyl compounds (aldehydes, ketones) react with ammonia or amines in the presence of a reducing agent and form corresponding amines. Common catalysts used for reductive aminations, especially for the synthesis of primary amines, are based on precious metals or Raney nickel. However, their drawbacks and limited applicability inspired us to look for alternative catalysts. The development of base-metal nanostructured catalysts is highly preferable and is crucial to the advancement of sustainable and cost-effective reductive amination processes. In this protocol, we describe the preparation of carbon-supported cobalt-based nanoparticles as efficient and practical catalysts for synthesis of different kinds of amines by reductive aminations. Template synthesis of a cobalt-triethylenediamine-terephthalic acid metal-organic framework on carbon and subsequent pyrolysis to remove the organic template resulted in the formation of supported single cobalt atoms and nanoparticles. Applying these catalysts, we have synthesized structurally diverse benzylic, aliphatic and heterocyclic primary, secondary and tertiary amines, including pharmaceutically relevant products, starting from inexpensive and easily accessible carbonyl compounds with ammonia, nitro compounds or amines and molecular hydrogen. To prepare this cobalt-based catalyst takes 26 h, and the reported catalytic reductive amination reactions can be carried out within 18-28 h.

Recommanded Product: 500-22-1. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Murugesan, K; Chandrashekhar, VG; Senthamarai, T; Jagadeesh, RV; Beller, M or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Authors Pishchugin, FV; Tuleberdiev, IT in MAIK NAUKA/INTERPERIODICA/SPRINGER published article about in [Pishchugin, F. V.; Tuleberdiev, I. T.] Kyrgyz Natl Acad Sci, Inst Chem & Phytotechnol, Bishkek 720071, Kyrgyzstan in 2021.0, Cited 13.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

The kinetics and mechanism of condensation of pyridoxal hydrochloride with L-alpha-asparagine, L-alpha- and D-alpha-aspartic acids are analyzed via UV spectroscopy and polarimetry. It is found that L-alpha-asparagine containing alpha-NH2 and gamma-NH2 groups interacts with pyridoxal via the gamma-NH2 group, forming Schiff bases that are resistant to chemical transformations. Rearrangement produces Schiff bases that form the cyclic structure from the amino acid moiety. L-alpha- and D-alpha-aspartic acids interacting with pyridoxal via alpha-NH2 groups create Schiff bases that form quinoid structures after elimination of alpha-hydrogen or CO2. Their subsequent hydrolysis results in pyridoxamine, alpha-ketoacids, and aldehyde acids, respectively. Schemes of the condensation mechanisms of L-alpha-asparagine, L-alpha-, D-alpha-aspartic acids with pyridoxal hydrochloride are proposed.

About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Pishchugin, FV; Tuleberdiev, IT or concate me.. Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Recently I am researching about 2,6-DIACETYLPYRIDINE DAP HYDRAZONES; CRYSTAL-STRUCTURES; SPECTROSCOPIC PROPERTIES; MAGNETIC-PROPERTIES; AROYL HYDRAZONES; II COMPLEXES; COPPER(II); OXIDASE; COORDINATION; MN(II), Saw an article supported by the IIEST, Shibpur; DSTDepartment of Science & Technology (India); All India Council for Technical Education (AICTE)All India Council for Technical Education (AICTE). Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Chakraborty, M; Mondal, A; Chattopadhyay, SK. The CAS is 65-22-5. Through research, I have a further understanding and discovery of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Three hydroxymethyl bridged Cu(ii) complexes of a pyridoxal Schiff base ligand 4-((E)-(2-(pyridin-2-yl)ethylimino)methyl)-5-(hydroxymethyl)-2-methylpyridin-3-ol (LH) have been synthesized and characterized on the basis of spectroscopic, elctrochemical and structural properties. The X-ray crystal structures of the complexes reveal dual denticity of the ligand, bidenticity in the absence of a co-ligand as in complex1, and tridenticity in the presence of a co-ligand such as SCN-/N(CN)(2)(-)as in complexes2and3. The complexes, though binuclear in the solid state, exist as a monomeric unit in solution due to the exceptionally long axial Cu-O-hydroxymethyl(2.4-2.5 angstrom) bond. All three complexes show efficient catalytic activities towards the aerial oxidation of 3,5-ditertiarybutylcatechol (DTBCH2) withk(cat)values of 5.38 x 10(4)h(-1), 1.18 x 10(5)h(-1)and 1.06 x 10(5)h(-1)in methanol. Complexes1and2also act as a selective sulphide ion sensor withK(b)values of 6.6 x 10(3)M(-1)and 8.1 x 10(3)M(-1), respectively, while their respective L.O.D. values are 3.4 mu M and 3.2 mu M.

Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Chakraborty, M; Mondal, A; Chattopadhyay, SK or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Copper(I)- and Mesoionic-Hydroxyamide-Catalyzed Chemoselective Aerobic Oxidation of Primary Benzylic Alcohols WOS:000458925800012 published article about ALDEHYDES; MECHANISM in [Matsukawa, Yuta; Hirashita, Tsunehisa] Nagoya Inst Technol, Grad Sch Engn, Life Sci & Appl Chem, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan in 2019.0, Cited 15.0. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1. Application In Synthesis of 3-Pyridinecarboxaldehyde

A new aerobic oxidation system consisting of Cu(I)I, 2,2′-bipyridine, N-methyl imidazole, and a mesoionic hydroxyamide was developed, with which selective oxidation of a broad range of benzylic alcohols was achieved.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Matsukawa, Y; Hirashita, T or concate me.. Application In Synthesis of 3-Pyridinecarboxaldehyde

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

In 2019.0 POLYHEDRON published article about COBALT(III) COMPLEX; CATECHOLASE; OXIDATION; DIOXYGEN; LIGAND; EXAMPLE in [Chatterjee, Arnab; Ghosh, Rajarshi] Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India; [Khan, Sumitava] Burdwan Raj Coll, Dept Chem, Burdwan 713104, W Bengal, India in 2019.0, Cited 32.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1. Category: pyridine-derivatives

Three new mononuclear complexes of the type [M(L)(2)](ClO4)(2), with Ni(II) (1), Cu(II) (2) and Zn(II) (3) ions, have been synthesized and structurally characterized, using the N,N,O donor Schiff base ligand 2-[(phenyl-pyridine-2-yl-methylene)-amino]-ethanol]. An X-ray diffraction study reveals identical crystallization patterns for each of the complexes, in the monoclinic crystal system with the C2/c space group. Interestingly, the synthesized complexes are isostructural in nature. The complexes showed biomimetic phenoxazinone synthase-like activity for the aerial oxidation of o-aminophenol to phenoxazine-2-one, separately in methanol (MeOH) and acetonitrile (ACN) solutions. For each of the complexes, the turnover numbers were found to be higher in MeOH than in ACN. The highest catalytic activity between among the three complexes was found to be for complex 2. (C) 2019 Elsevier Ltd. All rights reserved.

Category: pyridine-derivatives. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Chatterjee, A; Khan, S; Ghosh, R or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Application In Synthesis of Phenyl(pyridin-2-yl)methanone. In 2020.0 SYNTHETIC COMMUN published article about ASYMMETRIC TRANSFER HYDROGENATION; BAKERS-YEAST; BIOCATALYSIS; REDUCTION; ALCOHOL; BIOREDUCTION; ACETOPHENONE; FLAVONOIDS; RESOLUTION in [Sahin, Engin] Bayburt Univ, Dept Food Engn, Fac Engn, TR-69000 Bayburt, Turkey in 2020.0, Cited 58.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1.

Aryl and heteroaryl chiral carbinols are useful precursors in the synthesis of drugs. Lactobacillus paracasei BD87E6, which is obtained from a cereal based fermented beverage, was investigated as whole cell biocatalyst for the bioreduction of different ketones (including aromatic, hetero-aromatic and fused bicyclic ketone) into chiral carbinols, which can be used as a pharmaceutical intermediate. The study shows that bioreduction of aryl, heteroaryl and fused bicyclic ketone (1-5) to their corresponding chiral carbinols (1a-5a) in excellent enantioselectivity (>99%) with high yields. This study gave the first example for an enantiopure production of (S)-6-chlorochroman-4-ol (3a), which has many antioxidant activity, by a biological method. For asymmetric bioreduction of other prochiral ketones, these results open way to use of L. paracasei BD87E6 as biocatalysts. Also, the present process shows a hopeful and alternative green synthesis for the production of enantiopure carbinols in a mild, inexpensive and environmentally friendly process.

Application In Synthesis of Phenyl(pyridin-2-yl)methanone. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Sahin, E or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Scandium(III) Triflate Catalyzed Direct Synthesis of N-Unprotected Ketimines WOS:000506088700025 published article about MANNICH-TYPE REACTIONS; BOND FORMATION; ARYL HALIDES; ALPHA-AMINO; ASYMMETRIC HYDROGENATION; BENZOPHENONE IMINE; DIRECT ACCESS; SCHIFF-BASES; DERIVATIVES; ACTIVATION in [Kondo, Yuta; Kadota, Tetsuya; Hirazawa, Yoshinobu; Morisaki, Kazuhiro; Morimoto, Hiroyuki; Ohshima, Takashi] Kyushu Univ, Grad Sch Pharmaceut Sci, Higashi Ku, Maidashi 3-1-1, Fukuoka 8128582, Japan; [Morisaki, Kazuhiro] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan in 2020.0, Cited 67.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1. Quality Control of Phenyl(pyridin-2-yl)methanone

N-Unprotected ketimines are useful substrates and intermediates for synthesizing valuable nitrogen-containing compounds, but their potential applicability is limited by the available synthetic methods. To address this issue, we report a scandium(III) triflate catalyzed direct synthesis of N-unprotected ketimines. Using commercially available reagents and Lewis acid catalysts, ketones were directly transformed into the corresponding N-unprotected ketimines in high yields with broad functional group tolerance, even in multigram scales. The reactions were readily applicable for one-pot synthesis of important compounds such as a glycine Schiff base without isolation of N-unprotected ketimine intermediates. Preliminary mechanistic studies to clarify the reaction mechanism are also described.

Quality Control of Phenyl(pyridin-2-yl)methanone. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Kondo, Y; Kadota, T; Hirazawa, Y; Morisaki, K; Morimoto, H; Ohshima, T or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

In 2019 ORG BIOMOL CHEM published article about REDOX-ACTIVE LIGANDS; METAL; HYDROSILYLATION; HYDROGENATION; CARBONYL; COMPLEXES; FUNCTIONALIZATION; HYDROBORATION; ALDEHYDES; KETONES in [Tamang, Sem Raj; Cozzolino, Anthony F.; Findlater, Michael] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA in 2019, Cited 45. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6. Application In Synthesis of Ethyl nicotinate

The reaction of (dppBIAN) FeCl2 with 3 equivalents of n-BuLi affords a catalytically active anionic Fe complex; the nature of the anionic complex was probed using EPR and IR experiments and is proposed to involve a dearomatized, radical, ligand scaffold. This complex is an active catalyst for the hydrosilylation of esters to afford alcohols; loadings as low as 1 mol% were employed.

Application In Synthesis of Ethyl nicotinate. About Ethyl nicotinate, If you have any questions, you can contact Tamang, SR; Cozzolino, AF; Findlater, M or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Cyclometalated Gold(III) Complexes Bearing DACH Ligands WOS:000475838000050 published article about GOLD-BASED DRUGS; CRYSTAL-STRUCTURE; ANTICANCER AGENTS; 2-SUBSTITUTED PYRIDINES; SOLUTION CHEMISTRY; CARBENE COMPLEXES; CYTOTOXICITY; REACTIVITY; DERIVATIVES; INHIBITION in [Gukathasan, Sailajah; Parkin, Sean; Awuah, Samuel G.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA in 2019.0, Cited 90.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1. Recommanded Product: 91-02-1

The synthesis of a novel class of cyclometalated gold(III) complexes supported by benzoylpyridine, benzylpyridine, and (1R,2R)-(+)-1,2-diaminocyclohexane (DACH) ligands, along with their crystal structures, is reported. These compounds provide a new scaffold to investigate biological properties of gold(III) complexes. The six complexes were prepared and characterized, following reactions of (C,N) cyclometalated gold(III) scaffolds, [Au(C boolean AND N)Cl-2] with DACH, which yielded a new series of cyclometaled gold(III), 3-5, of the type [Au(C boolean AND NH)(DACH)(2)](+) and the nitrogen substituted cyclometalated Au(III), 6-8, of the type [Au-(C boolean AND N)(DACH)](2+). Antiproliferative activity of these complexes in a panel of cancer cells showed promising results with IC50 in the micromolar range and selectivity over normal epithelial cells, MRCS. Whereas 8 shows minimal interaction with superhelical DNA except at high gold concentrations of 500 mu M, complex 5 does not show interaction even at 1000 mu M. The complexes display significant uptake in OVCAR8 cancer cells within 200-1200 pmol/million cells with the exception of complex 4. Differential cellular uptake was observed for the complexes; for example, while 3 and 8 display significant uptake, 4 showed minimal uptake. The compounds proved to be stable under physiological conditions and were minimally affected by either glutathione or sodium ascorbate. Cell cycle studies reveal a G1 arrest induced by representative complexes. The results reveal that enhanced Au(III) stabilization promoted by combined cyclometalated and DACH ligands may offer ligand tuning insights for novel anticancer drug design.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Gukathasan, S; Parkin, S; Awuah, SG or concate me.. Recommanded Product: 91-02-1

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

SDS of cas: 91-02-1. Authors Mangalam, NA; Kurup, MRP; Suresh, E; Kaya, S; Serdaro, G in ELSEVIER published article about in [Mangalam, Neema Ani; Kurup, M. R. Prathapachandra] Cochin Univ Sci & Technol, Dept Appl Chem, Kochi 682022, Kerala, India; [Mangalam, Neema Ani] Mar Thoma Coll, Dept Chem, Tiruvalla 689103, Kerala, India; [Kurup, M. R. Prathapachandra] Cent Univ Kerala, Sch Phys Sci, Dept Chem, Tejaswini Hills, Kasaragod 671320, Kerala, India; [Suresh, Eringathodi] Cent Salt & Marine Chem Res Inst, Analyt Sci Discipline, Bhavnagar 364002, Gujarat, India; [Kaya, Savas] Sivas Cumhuriyet Univ, Hlth Serv Vocat Sch, Dept Pharm, TR-58140 Sivas, Turkey; [Serdaro, Goncagul] Sivas Cumhuriyet Univ, Math & Sci Edu, TR-58140 Sivas, Turkey in 2021.0, Cited 53.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1

Five cobalt complexes synthesized from two aroylhydrazones were characterized by elemental analyses, thermogravimetric analysis, molar conductivity, magnetic susceptibility measurements, IR and electronic spectra. Single crystal X-ray structure of one of the complex is also reported and it got crystallized in triclinic space group P (1) over bar and the crystal structure shows a distorted octahedral geometry around the metal center. Spectral data reveal that both the aroylhydrazones are tridentate and coordinate through the azomethine nitrogen, hydrazonic oxygen, and pyridyl nitrogen. Magnetic susceptibility measurements confirm the paramagnetic nature of the Co(II) complexes and one of the complex was found to be diamagnetic in nature. Additionally, HF/6-311G(d,p)/LANL2DZ calculations were performed to predict the possible intramolecular interactions contributing to the lowering of the stabilization energy. Accordingly, pi -> pi* transitions were found to be responsible for the stabilization energy for the ligands and their cobalt complexes. To describe and discuss the chemical reactivity and stability of synthesized complexes, quantum chemical parameters like frontier orbital energies, hardness, softness, energy gap, electronegativity, chemical potential, electrophilicity, polarizability and dipole moment were calculated. Also, the main electronic structure principles such as maximum hardness, minimum polarizability, and minimum electrophilicity principles were considered to evaluate the stability of the complexes. (C) 2021 Elsevier B.V. All rights reserved.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Mangalam, NA; Kurup, MRP; Suresh, E; Kaya, S; Serdaro, G or concate me.. SDS of cas: 91-02-1

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem