Day: October 11, 2021

Category: pyridine-derivatives. Recently I am researching about AMINO-PHOSPHONATES; 3-COMPONENT SYNTHESIS; ACID-DERIVATIVES; CATALYST; SOLVENT; AMINOPHOSPHONATES; INHIBITION; CHLORIDE; FACILE; KETONES, Saw an article supported by the . Published in TAYLOR & FRANCIS LTD in ABINGDON ,Authors: Patnala, H; Abbo, HS; Potla, KM; Titinchi, SJJ; Chinnam, S. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde

An efficient and eco-friendly protocol has been accomplished for a series of novel alpha-diaminophosphonates by a one-pot, three-component system via Kabachnik-Fields reaction of 4,4 ‘-methylenedianiline, a variety of aryl/heteroaryl aldehydes and diphenylphosphite employing polyethylene glycol (PEG-400) as a green solvent at 80 degrees C. All products were obtained in good to excellent yields (80-95%). The identity of the new synthesized compounds was confirmed by IR, H-1, 13C, and 31P NMR, LC-MS and elemental analysis. In vivo anti-viral activity was evaluated against tobacco mosaic virus (TMV). Compounds 4b, 4c, 4j and 4k exhibited the highest anti-viral activities against tobacco mosaic virus (TMV) when compared with the standard drug ningnanmycin. [GRAPHICS] .

Category: pyridine-derivatives. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Patnala, H; Abbo, HS; Potla, KM; Titinchi, SJJ; Chinnam, S or concate me.

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

Authors Bagautdinova, RH; Kibardina, LK; Pudovik, EM; Burilov, AR; Pudovik, MA in MAIK NAUKA/INTERPERIODICA/SPRINGER published article about AMINO-ACIDS in [Bagautdinova, R. H.; Kibardina, L. K.; Burilov, A. R.] Russian Acad Sci, Kazan Sci Ctr, Fed Res Ctr, AE Arbuzov Inst Organ & Phys Chem, Kazan 420088, Russia; [Pudovik, E. M.; Pudovik, M. A.] Kazan Volga Fed Univ, Kazan 420008, Russia in 2019.0, Cited 9.0. Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

The reactions of 4-methylpiperazin-1-amine, 2-amino- and 4-aminomethylpiperidines with pyridoxal afforded the corresponding azomethines. Their reactions with organic and inorganic acids lead to the formation of salt derivatives of pyridoxal azomethines.

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 Bagautdinova, RH; Kibardina, LK; Pudovik, EM; Burilov, AR; Pudovik, MA or concate me.

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

Recently I am researching about STABILIZED PHOSPHONIUM YLIDES; SKIPPED DIENES; C BOND; ALLYLIC ALCOHOLS; CALCIUM; ALLYLATION; CYCLOISOMERIZATION; PHOSPHATES; ALKYLATION; ALDEHYDES, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21702108]; State Key Program of the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21432009]; Natural Science Foundation of Jiangsu Province, ChinaNatural Science Foundation of Jiangsu Province [BK20160977]; Six Talent Peaks Project in Jiangsu Province [YY-033]; College Students’ Innovation and Open Experimentation Fund Project [2019DC0416]; Nanjing Tech University [39837101]; [MOE2016-T1-002-043 (RG111/16)]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Xie, PZ; Fu, WS; Cai, XY; Sun, ZL; Wu, Y; Li, SS; Gao, CQ; Yang, XB; Loh, TP. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde. COA of Formula: C6H5NO

A Ba/Pd cooperative catalysis system was developed to enable the dehydrative cross-coupling of allylic alcohols with P-ylides to occur directly and promote a subsequent Wittig reaction in one pot. A variety of multisubstituted 1,4-dienes were isolated in good to excellent yields with broad P-ylides (stabilized by both ester and ketone carbonyl groups) and aldehyde (aliphatic and aromatic) substrates with excellent E selectivity.

COA of Formula: C6H5NO. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Xie, PZ; Fu, WS; Cai, XY; Sun, ZL; Wu, Y; Li, SS; Gao, CQ; Yang, XB; Loh, TP or concate me.

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

An article Cobalt complexes containing salen-type pyridoxal ligand and DMSO for cycloaddition of carbon dioxide to propylene oxide WOS:000523754500006 published article about CYCLOHEXENE OXIDE; HIGHLY EFFICIENT; METAL-CATALYSTS; COPOLYMERIZATION; CO2; EPOXIDES in [Hwang, Saem; Ryu, Ji Yeon; Jung, Sung Hoo; Park, Hyoung-Ryun; Lee, Junseong] Chonnam Natl Univ, Dept Chem, 300 Yongbong Dong, Gwangju 500757, South Korea in 2020.0, Cited 33.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5. Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Cobalt complexes containing a salen-type pyridoxal ligand with pyridine were synthesized as a new Co (III) catalytic system for the cycloaddition of carbon dioxide. Two cobalt(III) complexes possessing a salen-type pyridoxyl ligand were synthesized by the reaction of pyridoxal ligands (pyr(2)en = (N,N’-bis (pyridoxylideneiminato)ethylene) and pyr(2)cy = (N,N’-bis(pyridoxylideneiminato)cyclohexane)) and Co (OAc)(2) and characterized by various analytical methods, including infrared spectroscopy and high-resolution mass analysis. Single-crystal X-ray crystallography analysis confirmed that the cobalt pyr(2)en complex had a distorted octahedral structure: the tetradentate Schiff base ligand binds the cobalt metal in one plane, and the metal center adopts an octahedral geometry by the additional coordination of acetate and dimethyl sulfoxide. The synthesized complexes were used as catalysts in the cycloaddition of carbon dioxide (CO2) to propylene oxide. The catalysts showed high activity for cycloaddition between CO2 and epoxides, even at a low loading (0.5 mol%), in the presence of various cocatalysts. (C) 2020 Elsevier Ltd. All rights reserved.

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 Hwang, S; Ryu, JY; Jung, SH; Park, HR; Lee, J or concate me.

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

Computed Properties of C8H10ClNO3. In 2020.0 BIOCHEM ENG J published article about MONOCLONAL-ANTIBODY PRODUCTION; AMINO-ACIDS; METABOLISM; GLUCOSE; GROWTH; PRODUCTIVITY; STRATEGIES; PROTEIN; DESIGN; MEDIA in [Rawat, Jyoti; Gadgil, Mugdha] CSIR Natl Chem Lab, Chem Engn & Proc Dev, Pune 411008, Maharashtra, India; [Rawat, Jyoti; Gadgil, Mugdha] CSIR Natl Chem Lab Campus, Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India in 2020.0, Cited 40.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5.

Small-scale culture of animal cells in suspension is of importance for many applications. At a small-scale, fed-batch is achieved either by manual bolus feeding or the use of liquid handling robots. In this study, we report an alternate application of a hydrogel for in situ continuous delivery of a nutrient feed comprising 18 amino acids, vitamins, antioxidants, and trace elements. We show that amino acid release is sustained for at least seven days. Importantly, release rates of individual amino acids can be independently modulated by changing their loading. We demonstrate the application of this hydrogel for complete in situ feeding of nutrients to a suspension adapted CHO cell line expressing IgG leading to 2.7-fold and 4-fold improvement in integral viable cell density (IVCD) and volumetric productivity respectively. This is similar to improvements obtained by bolus liquid feeding. Further, supplying glucose from the same hydrogel to eliminate manual feeding led to a 1.8-fold increase in IVCD accompanied by a 3-fold increase in volumetric productivity as compared to batch culture. In summary, this study provides a proof-of-concept that hydrogels can enable completely closed in situ feeding for mammalian cell culture requiring no external intervention. Such continuous in situ delivery can potentially enable closed culture systems maintaining nutrients at low levels mimicking physiological concentrations.

Computed Properties of C8H10ClNO3. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Rawat, J; Gadgil, M or concate me.

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

An article Preparation and Characterization of Acetic Acid-Functionalized Fe3O4@SiO2 Nanoparticles as an Efficient Nanocatalyst for the Synthesis of Nitrones in Water WOS:000491797300001 published article about MAGNETIC NANOPARTICLES; CYCLOADDITION REACTIONS; CATALYST; GREEN; SHELL; CORE; MICROSPHERES; DERIVATIVES; SYSTEMS in [Shendy, Saeid Ahmadizadeh; Shahverdizadeh, Gholam Hossein; Babazadeh, Mirzaagha; Hosseinzadeh-Khanmiri, Rahim; Es’haghi, Moosa] Islamic Azad Univ, Dept Chem, Tabriz Branch, Tabriz, Iran in 2020.0, Cited 37.0. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1. Category: pyridine-derivatives

Magnetic materials grafted with acetic acid (Fe3O4@SiO2COOH MNPs) were successfully prepared from the incorporation of bromoacetic acid as a functional group on the surface of magnetite silica nanoparticles. The catalyst has been characterized by Fourier transform infrared spectroscopy, X-ray diffraction, elemental analysis, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, scanning electron microscopy and transition electron microscopy. Next, the efficiency of this acid catalyst was examined for the synthesis of the nitrones from diaminoglyoxime in the water at room temperature. The present approach provides several advantages such as environmentally benign, excellent yields, straightforward, short reaction times, good recyclability of catalyst, cost-effective and facile catalyst separation for the preparation of nitrones compounds as an important privileged medicinal scaffold.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Shendy, SA; Shahverdizadeh, GH; Babazadeh, M; Hosseinzadeh-Khanmiri, R; Es’haghi, M or concate me.. Category: pyridine-derivatives

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

An article Diverse reactivity to hypochlorite and copper ions based on a novel Schiff base derived from vitamin B6 cofactor WOS:000583948500064 published article about FLUORESCENT-PROBE; MITOCHONDRIA; BIOMARKER; SENSORS in [Li, Xiangqian; Wen, Qin; Gu, Jiapei; Wang, Qianming; Zheng, Yuhui] South China Normal Univ, Sch Chem, Guangzhou 510006, Peoples R China; [Liu, Wanqiang] Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Xiangtan 411201, Peoples R China; [Wang, Qianming; Zhou, Guofu; Gao, Jinwei] South China Normal Univ, South China Acad Adv Optoelect, Inst Adv Mat, Guangzhou 510006, Peoples R China; [Wang, Qianming; Zhou, Guofu; Gao, Jinwei] South China Normal Univ, Guangdong Prov Key Lab Opt Informat Mat & Technol, Guangzhou 510006, Peoples R China in 2020.0, Cited 50.0. HPLC of Formula: C8H10ClNO3. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

A new Schiff base receptor (2-amino-3-(((3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methylene) amino)maleonitrile (GAL)) has been synthesized and such diaminomaleonitrile-based molecular framework is observed to be water soluble. GAL possesses both colorimetric and off-on fluorescent response in the presence of ClO-. The response time has been controlled within 6 min. The limit of detection (LOD) has been calculated to be 47.5 nM. The addition of Cu2+ can only induce clear color evolution from pale to deep yellow (LOD: 0.22 mu M) and no fluorescence changes are found. Moreover, its reliability and practicality are verified via the determination of ClO- in spiked samples of tap water and pond water. The exploration of bioactive vitamin B6 cofactor as a sensing platform will open a new way for multiple target recognition in competitive mediums. (C) 2020 Elsevier B.V. All rights reserved.

HPLC of Formula: C8H10ClNO3. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Li, XQ; Wen, Q; Gu, JP; Liu, WQ; Wang, QM; Zhou, GF; Gao, JW; Zheng, YH or concate me.

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

Gu, YF; Zhang, Y; Yue, FL; Li, ST; Zhang, ZQ; Li, J; Bai, X in [Gu, Yi-Fei; Zhang, Yue; Zhang, Zhuo-qi; Bai, Xu] Jilin Univ, Sch Pharmaceut Sci, Ctr Combinatorial Chem & Drug Discovery, 1266 Fujin Rd, Changchun 130021, Peoples R China; [Yue, Feng-li; Li, Shao-tong; Li, Jing] Jilin Univ, Dept Pharmacol, Coll Basic Med Sci, Changchun 130021, Peoples R China published Synthesis of Novel 2-(Pyridin-2-yl) Pyrimidine Derivatives and Study of Their Anti-Fibrosis Activity in 2020, Cited 34. Category: pyridine-derivatives. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6.

A pyrimidine moiety exhibiting a wide range of pharmacological activities has been employed in the design of privileged structures in medicinal chemistry. To prepare libraries of novel heterocyclic compounds with potential biological activities, a series of novel 2-(pyridin-2-yl) pyrimidine derivatives were designed, synthesized and their biological activities were evaluated against immortalized rat hepatic stellate cells (HSC-T6). Fourteen compounds were found to present better anti-fibrotic activities than Pirfenidone and Bipy55 ‘ DC. Among them, compounds ethyl 6-(5-(p-tolylcarbamoyl)pyrimidin-2-yl)nicotinate (12m) and ethyl 6-(5-((3,4-difluorophenyl)carbamoyl)pyrimidin-2-yl)nicotinate (12q) show the best activities with IC50 values of 45.69 mu M and 45.81 mu M, respectively. Furthermore, the study of anti-fibrosis activity was evaluated by Picro-Sirius red staining, hydroxyproline assay and ELISA detection of Collagen type I alpha 1 (COL1A1) protein expression. Our study showed that compounds 12m and 12q effectively inhibited the expression of collagen, and the content of hydroxyproline in cell culture medium in vitro, indicating that compounds 12m and 12q might be developed the novel anti-fibrotic drugs.

Category: pyridine-derivatives. About Ethyl nicotinate, If you have any questions, you can contact Gu, YF; Zhang, Y; Yue, FL; Li, ST; Zhang, ZQ; Li, J; Bai, X or concate me.

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

An article Immobilized piperazine on the surface of graphene oxide as a heterogeneous bifunctional acid-base catalyst for the multicomponent synthesis of 2-amino-3-cyano-4H-chromenes WOS:000550567200021 published article about ONE-POT SYNTHESIS; GREEN SYNTHESIS; IONIC LIQUID; COOPERATIVE CATALYSIS; REUSABLE CATALYST; SOLVENT-FREE; ENANTIOSELECTIVE SYNTHESIS; KNOEVENAGEL CONDENSATION; MESOPOROUS ORGANOSILICA; ANTIBACTERIAL ACTIVITY in [Khazaee, Asma; Jahanshahi, Roya; Sobhani, Sara] Univ Bidand, Coll Sci, Dept Chem, Birjand, Iran; [Skibsted, Jorgen] Aarhus Univ, Dept Chem, Tangelandsgade 140, DK-8000 Aarhus C, Denmark; [Skibsted, Jorgen] Aarhus Univ, Interdisciplinary Nanosci Ctr iNANO, Tangelandsgade 140, DK-8000 Aarhus C, Denmark; [Miguel Sansano, Jose] Univ Alicante, Ctr Innovac Quim Avanzada ORFEO CINQA, Fac Ciencias, Dept Quim Organ, Apdo 99, Alicante 03080, Spain; [Miguel Sansano, Jose] Univ Alicante, Inst Sintesis Organ ISO, Apdo 99, Alicante 03080, Spain in 2020.0, Cited 103.0. COA of Formula: C6H5NO. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1

Immobilized piperazine on the surface of graphene oxide (piperazine-GO) is synthesized and characterized by different methods such as FT-IR, solid-state(29)Si{H-1} and(13)C{H-1} CP/MAS NMR, elemental analysis, TGA, TEM, FE-SEM, XPS, and TPD. Subsequently, it is used as a heterogeneous bifunctional acid-base catalyst for the efficient multicomponent reaction of malononitrile, different active compounds containing enolizable C-H bonds and various aryl/alkyl aldehydes in aqueous ethanol. A wide variety of 2-amino-3-cyano-4H-chromenes are synthesized in the presence of this heterogeneous catalyst in good to high yields and with short reaction times. The catalyst is easily separated and reused for at least six times without significant loss of activity. The acidic nature of GO improves the catalytic activity of the supported piperazine and also provides heterogeneity to the catalyst. Use of aqueous ethanol as a green solvent, high turnover numbers (TON), facile catalyst recovery and reuse, simple work-up and generality of the method make this protocol an environmentally benign procedure for the synthesis of the title heterocycles.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Khazaee, A; Jahanshahi, R; Sobhani, S; Skibsted, J; Sansano, JM or concate me.. COA of Formula: C6H5NO

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

Authors Zhang, Y; Hatami, N; Lange, NS; Ronge, E; Schilling, W; Jooss, C; Das, S in ROYAL SOC CHEMISTRY published article about C DOUBLE-BOND; MOLECULAR-OXYGEN; FREE CATALYST; PHOTOOXIDATIVE CLEAVAGE; ALPHA-METHYLSTYRENE; SINGLET-OXYGEN; ALCOHOLS; GREEN; CO2; TRANSFORMATION in [Zhang, Yu; Das, Shoubhik] Univ Antwerp, Dept Chem, ORSY Div, Gronenborgerlaan 171, B-2020 Antwerp, Belgium; [Zhang, Yu; Hatami, Nareh; Lange, Niklas Simon; Schilling, Waldemar] Georg August Univ Gottingen, Inst Biomol & Organ Chem, Tammannstr 2, D-37077 Gottingen, Germany; [Ronge, Emanuel; Jooss, Christian] Georg August Univ Gottingen, Inst Materialphys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany in 2020, Cited 68. SDS of cas: 91-02-1. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1

Selective cleavage of C & xe001;C bonds is highly important for the synthesis of carbonyl containing fine chemicals and pharmaceuticals. Novel methodologies such as ozonolysis reactions, Lemieux-Johnson oxidation reactionetc. already exist. Parallel to these, catalytic methods using homogeneous catalysts also have been discovered. Considering the various advantages of heterogeneous catalysts such as recyclability and stability, couple of transition metal-based heterogeneous catalysts have been applied for this reaction. However, the pharmaceutical industries prefer to use metal-free catalysts (especially transition metal-free) to avoid further leaching in the final products. This is for sure a big challenge to an organic chemist and to the pharmaceutical industries! To make this feasible, a mild and efficient protocol has been developed using polymeric carbon nitrides (PCN) as metal-free heterogeneous photocatalysts to convert various olefins into the corresponding carbonyls. Later, this catalyst has been applied in the gram scale synthesis of pharmaceutical drugs using direct solar energy. Detailed mechanistic studies revealed the actual role of oxygen, the catalyst, and the light source.

SDS of cas: 91-02-1. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Zhang, Y; Hatami, N; Lange, NS; Ronge, E; Schilling, W; Jooss, C; Das, S or concate me.

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