Category: 636-73-7

On October 31, 1977, Mulvaney, R. L.; Bremner, J. M. published an article.Name: Pyridine-3-sulfonic acid The title of the article was Evaluation of antimetabolites for retardation of urea hydrolysis in soils. And the article contained the following:

Studies to evaluate 3 antimetabolites patented as inhibitors of urea [57-13-6] hydrolysis in soils (pyridine-3-sulfonic acid [636-73-7], desthiobiotin [533-48-2] and oxythiamine chloride [582-36-5]) showed that they had no effect on production of urease [9002-13-5] by soil microorganisms and did not retard urea hydrolysis in soils or reduce gaseous loss of urea N as NH3, even when applied at rates far exceeding those recommended for inhibition of urea hydrolysis. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Name: Pyridine-3-sulfonic acid

The Article related to soil urea hydrolysis antimetabolite, Fertilizers, Soils, and Plant Nutrition: Fertilizer-Soil Relations, Including Amendments and other aspects.Name: Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Shirra, Alexander; Suckling, Colin J. published an article in 1977, the title of the article was Pyridinium salts and dihydropyridines; mechanistic studies of the redox reaction between pyridinium salts and alkoxides in tetrahydrofuran.SDS of cas: 636-73-7 And the article contains the following content:

A model system for NAD-dependent redox reactions was designed to assess the involvement of covalent adducts as intermediates. The system consisted of 3-substituted 1-n-heptylpyridinium salts and substituted benzyl alkoxides. Although covalent adducts were found in the reaction mixture, studies of substituent effects and other structural variations did not show that A covalent intermediate is on the reaction path. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).SDS of cas: 636-73-7

The Article related to redox pyridinium alkoxide mechanism, nad redox model system, Physical Organic Chemistry: Oxidation-Reduction Reactions (Including Hydrogenation) and other aspects.SDS of cas: 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 8, 2014, Neudeck, Sven; Maji, Somnath; Lopez, Isidoro; Meyer, Steffen; Meyer, Franc; Llobet, Antoni published an article.Electric Literature of 636-73-7 The title of the article was New Powerful and Oxidatively Rugged Dinuclear Ru Water Oxidation Catalyst: Control of Mechanistic Pathways by Tailored Ligand Design. And the article contained the following:

A new powerful and oxidatively rugged pyrazolate-based water oxidation catalyst of formula {[RuII(py-SO3)2(H2O)]2(μ-Mebbp)}-, 1(H2O)2-, has been prepared and thoroughly characterized spectroscopically and electrochem. This new catalyst has been conceived based on a specific ligand tailoring design, so that its performance has been systematically improved. It was also demonstrated how subtle ligand modifications cause a change in the O-O bond formation mechanism, thus revealing the close activation energy barriers associated with each pathway. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Electric Literature of 636-73-7

The Article related to powerful oxidatively rugged dinuclear ruthenium water oxidation catalyst, control mechanistic pathway tailored ligand design, Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms: Reaction Kinetics and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 19, 2002, Owa, Takashi; Yoshino, Hiroshi; Okauchi, Tatsuo; Okabe, Tadashi; Ozawa, Yoichi; Hata Sugi, Naoko; Yoshimatsu, Kentaro; Nagasu, Takeshi; Koyanagi, Nozomu; Kitoh, Kyosuke published an article.Computed Properties of 636-73-7 The title of the article was Synthesis and biological evaluation of N-(7-indolyl)-3-pyridinesulfonamide derivatives as potent antitumor agents. And the article contained the following:

The synthesis and antitumor activity of E7070 analogs containing a 3-pyridinesulfonamide moiety is reported. E7070 was selected from our sulfonamide-based compound collections, currently undergoing Phase II clin. trials because of its tolerable toxicity profile and some antitumor responses in the Phase I setting. Of the analogs examined, ER-35745 (I), a 6-amino-3-pyridinesulfonamide derivative, demonstrated significant oral efficacy against the HCT116 human colon carcinoma xenograft in nude mice. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Computed Properties of 636-73-7

The Article related to pyridinesulfonamide indolyl derivative preparation antitumor, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Computed Properties of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 15, 2018, Moustani, Chrysavgi; Anagnostopoulou, Eleni; Krommyda, Kalliopi; Panopoulou, Christina; Koukoulakis, Konstantinos G.; Bakeas, Evangelos B.; Papadogianakis, Georgios published an article.Product Details of 636-73-7 The title of the article was Novel aqueous-phase hydrogenation reaction of the key biorefinery platform chemical levulinic acid into γ-valerolactone employing highly active, selective and stable water-soluble ruthenium catalysts modified with nitrogen-containing ligands. And the article contained the following:

High catalytic activities (TO = 000 -1) have been achieved by novel water-soluble ruthenium catalysts modified with nitrogen-containing ligands such as the bathophenanthrolinedisulfonic acid disodium salt (BPhDS) in the hydrogenation reaction of the renewable polar platform chem. levulinic acid (LA) which possesses a central relevance in the development of biorefineries of the future in a sustainable way to produce with essentially quant. selectivity of 99.9 mol% γ-valerolactone (GVL) in aqueous media. The apparent activation energy of the Ru/BPhDS catalyst was calculated and amounts a relative low value of 53.3 J/mol when one considers that in the LA hydrogenation reaction this catalyst reduces a less reactive keto group into alc. functionality. A recycling experiment of the Ru/BPhDS catalyst by extraction after addition of di-Et ether has shown that the catalyst is stable without loss of activity and selectivity in a consecutive run. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Product Details of 636-73-7

The Article related to hydrogenation m levulinate gamma valerolactone catalyst, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Product Details of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On May 24, 1991, Karaman, Rafik; Bruice, Thomas C. published an article.Computed Properties of 636-73-7 The title of the article was Synthesis and characterization of the first water-soluble closely interspaced cofacial porphyrin dimer. And the article contained the following:

The only documented example of a quadruply-bridged, closely-interspaced cofacial porphyrin dimer was synthesized by Kagan (1977). The target of this communication is the synthesis and characterization of the first water soluble quadruply-bridged, closely-interspaced cofacial porphyrin I (R = R1). Reaction of meso-tetrakis(3-bromomethylphenyl)porphyrin with m-pyridinesulfonamide provides the closely-interspaced cofacial porphyrin dimer I (R = R2) which on quaternization with MeI provides the water soluble I (R = R1). Reactions of I with Zn(OAc)2 provided the corresponding bis-zinc complexes I. Porphyrins I and their bis-zinc complexes, exist in a closed down conformation with closely approaching porphyrin planes or in an open conformation. It was established, on the basis of 1H-NMR UV/vis, and emission spectrophotometries, and I (R = R2) exists in a closed down conformation in DMSO or acetone and a more open conformation is CHCl3. With zinc complexes of I (or protonated I) the conformation is open regardless of the solvent. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Computed Properties of 636-73-7

The Article related to porphyrin dimer quadruply bridged conformation, tetrakisbromoethylphenylporphyrin alkylation pyridinesulfonamide, Biomolecules and Their Synthetic Analogs: Corrinoids, Porphyrins, and Bilines and other aspects.Computed Properties of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 3, 1992, Karaman, Rafik; Blasko, Andrei; Almarsson, Orn; Arasasingham, Ramesh; Bruice, Thomas C. published an article.Electric Literature of 636-73-7 The title of the article was Symmetrical and unsymmetrical quadruply aza-bridged, closely interspaced, cofacial bis(5,10,15,20-tetraphenylporphyrin)s. 2. Synthesis, characterization, and conformational effects of solvents. And the article contained the following:

Title compounds I [X = NR, R = 3-pyridylsulfonyl (R1), 1-methylpyridinium-3-sulfonyl (R2), CONH2, cyano, tosyl; X = OCO2, R = R1, cyano] have been synthesized and fully characterized by 2-dimensional 1H-1H NMR (COSY), 2-dimensional 13C-1H NMR, fast-atom-bombardment mass spectrometry, UV/vis, IR, and fluorescence spectral techniques. It was established, on the basis of 1H NMR, UV/vis, and emission spectrophotometries, that I (X = NR, R = R1, R2, tosyl) exist in more than one conformational in DMSO and in only one sym. conformation in CHCl3. Their biszinc complexes and tetraprotonated derivatives exist in one conformation regardless of the solvent. These observations have been attributed to an interaction between DMSO and the pyrrolic N-H protons of the porphyrin cores which is inhibited by metalation or protonation. Mol. dynamics calculations reveal that the intracavity interactions of I (X = NR, R = R1) with DMSO are more important than the intercavity interactions which result in discrete, unsym. conformations of the dimer. In contrast, I (X = OCO2, R = R1, cyano; X = NR, R = cyano, CONH2) do not show any conformational changes upon switching from CHCl3 to DMSO. This is attributed to the long interplanar distances calculated for the porphyrin dimers which prevent intracavity coordination of DMSO with both porphyrin moieties. 1H NMR variable-temperature experiments of I (X = NR, R = R1) in DMSO show that the conformation of the dimer is greatly affected by temperature While at room temperature I (X = NR, R = R1) exists in more than one conformation, at higher temperatures (150°) only one conformation is populated. It is proposed that at room temperature, the existence of a H-bonding network between DMSO and the dimer results in more than one conformation, while at higher temperatures the network is destroyed to furnish an average conformation. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Electric Literature of 636-73-7

The Article related to porphyrin dimer preparation conformation, Biomolecules and Their Synthetic Analogs: Corrinoids, Porphyrins, and Bilines and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On March 31, 2008, Ramya, G.; Renugadevi, C.; Rao, Chepuri R. K.; Trivedi, D. C. published an article.Application In Synthesis of Pyridine-3-sulfonic acid The title of the article was Investigations on pyridine-3-sulfonic acid doped polyaniline and polypyrrole: Metal loading through dopant molecules. And the article contained the following:

Polyniline and polypyrrole were chem. and electrochem. synthesized in presence of pyridine-3-sulfonic acid. These conducting polymers were characterized by FT-IR, UV-vis, XRD, TGA and SEM techniques. Polyaniline showed a conductivity of 4 × 10-4 S/cm while polypyrrole exhibited a conductivity of 6.2 × 10-2 S/cm. The presence of pyridine ring in the dopant enabled the polymers to anchor Pd/or PdO through which the composite can work as catalytic material. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Application In Synthesis of Pyridine-3-sulfonic acid

The Article related to pyridine sulfonic acid dopant polyaniline polypyrrole metal conductivity elec, Plastics Manufacture and Processing: Physical Properties and Testing Methods and other aspects.Application In Synthesis of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 10, 2004, Winther-Jensen, Bjorn; Chen, Jun; West, Keld; Wallace, Gordon published an article.Application In Synthesis of Pyridine-3-sulfonic acid The title of the article was Vapor Phase Polymerization of Pyrrole and Thiophene Using Iron(III) Sulfonates as Oxidizing Agents. And the article contained the following:

Vapor phase polymerization is a versatile technique that can be used to obtain highly conducting coatings of conjugated polymer on both conducting and nonconducting substrates. This is demonstrated here by preparation of polypyrrole, polybithiophene, and polyterthiophene, coatings that otherwise must be prepared electrochem. in order to achieve the desired high conjugation. The method is based on the use of organic ferric sulfonates as oxidant as these salts easily form smooth, noncrystalline films. By proper choice of the sulfonate anion, the oxidizing power of the ferric salt can be varied over a wide range. The described technique can easily be adapted to different patterning techniques. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Application In Synthesis of Pyridine-3-sulfonic acid

The Article related to pyrrole thiophene vapor phase polymerization iron sulfonate oxidant, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Application In Synthesis of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 31, 2021, Oh, In-Chan; Kim, Ho-Young; Hyun, Soong-Keun; Byoun, Young-Min published an article.Quality Control of Pyridine-3-sulfonic acid The title of the article was Characterization of palladium electrodeposition in ammonia-free electrolyte with additives. And the article contained the following:

Electrodeposition of Pd provides excellent chem. and low-contact resistance with good elec. properties, such as different types of elec. contacts in the electronics industry. The conventional Pd plating process utilizes ammonia-based electrolytes. Ammonia was added continuously to maintain the optimum pH range in Pd electrolyte. In addition, the harmful and strong odor of the evaporating ammonia necessitates the use of a ventilator. A further disadvantage is that the brass substrate is corroded by ammonia vapor, and the corrosion products can contaminate the electrolytes, thereby changing the technol. properties of the deposited plating for the worse. Ethylenediamine has been proposed as an alternative to ammonia; however, Pd electrodeposition occurs as microcracks via hydrogen evolution. In this study, the effects of Pd electrolyte on ethylenediamine as a complexing agent and the properties of various additives are investigated to improve c.d. and internal stress in Pd electrodeposition that occurs on a brass substrate. Therefore, complexing agents such as 3-pyridine sulfonic acid, sodium nicotinate, butyne 1-4 diol, and sodium allylsulfonate are selected as additives, to serve as an alternative to ammonia in Pd electrolyte. In this study, the properties of electrodeposited Pd with various additives were examined The effect of additives on Pd electrolytes can be classified as dense surfaces without defects such as microcracks and pinholes, which improved surface roughness and corrosion resistance. Particularly, Pd electrolyte using sodium nicotinate has relatively improved surface roughness and properties. Pd electrolyte was optimized under ammonia-free conditions by the addition of sodium nicotinate. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Quality Control of Pyridine-3-sulfonic acid

The Article related to palladium electrodeposition ethylenediamine electrolyte additive surface roughness elec property, Electrochemistry: Electrodes, Electrode Reactions, and Electrode Potentials and other aspects.Quality Control of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem