Category: 636-73-7

Yamada, Mamoru published the artcileMicrobial conversion of 5-sulfoisophthalic acid into 5-hydroxyisophthalic acid by Ochrobactrum anthropi S9, Related Products of pyridine-derivatives, the publication is Biotechnology Letters (2010), 32(3), 445-450, database is CAplus and MEDLINE.

5-Hydroxyisophthalic acid-producing microorganisms were isolated from enrichment cultures using 5-sulfoisophthalic acid as a sulfur source. One bacterium, Ochrobactrum anthropi S9, had the highest 5-sulfoisophthalic acid-degrading activity, and stoichiometrically formed 5-hydroxyisophthalic acid, a raw material for polymer synthesis. Under optimum culture conditions, 1.3 mM 5-hydroxyisophthalic acid accumulated in the medium by 60 h. The addition of Na₂SO₄, l-methionine or l-cysteine at 2 mM inhibited the conversion of 5-sulfoisophthalic acid. O. anthropi S9 cells converted 5-sulfoisophthalic acid, benzenesulfonic acid, 3-sulfobenzoic acid, 4-aminobenzenesulfonic acid, naphthalene-1-sulfonic acid and naphthalene-2-sulfonic acid into the corresponding hydroxylated compounds

Biotechnology Letters published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C16H12O, Related Products of pyridine-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Owa, Takashi published the artcileSynthesis and biological evaluation of N-(7-indolyl)-3-pyridinesulfonamide derivatives as potent antitumor agents, Formula: C5H5NO3S, the publication is Bioorganic & Medicinal Chemistry Letters (2002), 12(16), 2097-2100, database is CAplus and MEDLINE.

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.

Bioorganic & Medicinal Chemistry Letters published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Formula: C5H5NO3S.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Kuznetsov, V. V. published the artcileSpectrophotometric titrimetry of nitrogen-containing heteroaromatic sulfonates in organo-aqueous solutions, Computed Properties of 636-73-7, the publication is Zhurnal Analiticheskoi Khimii (1990), 45(11), 2204-10, database is CAplus.

The formation constants and free energy of transfer of Ba complexes with 8-quinolinol-2-, 8-quinolinol-5-, and 3-pyridinesulfonates in H₂O-Me₂CO were examined by potentiometry and a method was developed for determining the sulfonates in the presence of sulfates. The method involves titration with BaCl₂ vs. Orthanilic B.

Zhurnal Analiticheskoi Khimii published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Computed Properties of 636-73-7.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Jin, Lei published the artcileElectrochemistry and coordination behaviors of hypoxanthine-Au (III) ion in the cyanide-free gold electrodeposition, Safety of Pyridine-3-sulfonic acid, the publication is Journal of the Electrochemical Society (2020), 167(2), 022511, database is CAplus.

Alkaloid hypoxanthine is a novel complexant for green cyanide-free Au(III) electrodeposition. The electrochem. and coordination behaviors of hypoxanthine-Au(III) ion in the green cyanide-free bath were studied. The electrochem. behavior confirms that hypoxanthine-Au(III) ion is in the irreversible two-step electro-reductions with the 1st controlled by diffusion and the 2nd by diffusion and electrochem. The stability constant of hypoxanthine-Au(III) ion is 4.8 × 10³⁰. DFT calculations further indicate that the optimal coordination structure is N3-Au-N7 with the N-Au average bond energy of 11.03 eV. The bath component of K citrate plays almost no influence, whereas the additive of sulfocompounds shows a significant effect on the electro-reduction of hypoxanthine-Au(III) ion. Based on the cyanide-free Au(III) electrodeposition bath, the obtained Au coating is fine and compact in grains without organic inclusion and in the resistivity of 2.84 × 10^-8 Ω m.

Journal of the Electrochemical Society published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Safety of Pyridine-3-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lan, Lixin published the artcileUltrasonic-assisted synthesis of 2-sulfonyl nitrogen heterocyclic compounds, Recommanded Product: Pyridine-3-sulfonic acid, the publication is Youji Huaxue (2018), 38(2), 492-497, database is CAplus.

A facile and convenient ultrasonic-assisted method for the synthesis of 2-sulfonyl nitrogen heterocyclics has been developed. Using bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBroP) as catalyst, the reactions were carried out under ultrasound irradiation condition at room temperature for 1.0 h, and the 2-sulfonyl nitrogen heterocyclics were obtained in good yields with nitrogen heterocyclic N-oxides and sulfinic acid as raw materials. The reaction has the advantages of good substrate suitability, short reaction times and high yields, which provides a efficient approach for the synthesis of 2-sulfonyl nitrogen heterocyclics and their derivatives

Youji Huaxue published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Recommanded Product: Pyridine-3-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Yang, Fang-zu published the artcileA study on the effect of bath composition on the internal stress of a palladium electrodeposit, Recommanded Product: Pyridine-3-sulfonic acid, the publication is Transactions of the Institute of Metal Finishing (1998), 76(6), 238-240, database is CAplus.

The effects of bath composition on the internal stress of palladium electrodeposits are studied in neutral media with Pd(NH₃)₂Cl₂, K₃C₆H₅O₇, (NH₄)₂C₂O₄ and the additives of the mixture of the synthesized products of nicotinic acid and nicotiamide (NANA), pyridine-3-sulfonic acid (PSA), α-furan formic acid (FF) and cetyl tri-Me ammonium bromide (CTMAB). The internal stress of electrodeposits is quite changeable at the beginning of electrodeposition, later becoming stable gradually. Deposits obtained from pulse electrodeposition have lower stress than that from d.c. After electrodeposition, all the deposits keep the tensile stress which increases with time.

Transactions of the Institute of Metal Finishing published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C8H11NO, Recommanded Product: Pyridine-3-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Shibata, Katsumi published the artcileNiacin activity of 3-cyanopyridine, pyridine 3-sulfonic acid, nicotinic acid N-oxide, and 6-hydroxynicotinic acid in rats, Application In Synthesis of 636-73-7, the publication is Bitamin (1995), 69(7), 357-64, database is CAplus.

Niacin activity of the niacin related compounds such as 3-cyanopyridine, pyridine 3-sulfonic acid, nicotinic acid N-oxide, and 6-hydroxynicotinic acid was investigated using rats. 3-Cyanopyridine, pyridine-3-sulfonic acid, and 6-hydroxynicotinic acid had not only niacin activity but also the antagonistic activity. Nicotinic acid N-oxide had niacin activity and the relative niacin activity to nicotinic acid was about 1/2 in molar ratio.

Bitamin published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C14H10O4S2, Application In Synthesis of 636-73-7.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Watanabe, Takashi published the artcileOrganic synthesis unit process-thiochemicals and heterocyclic compounds: heterocyclic compounds (part 1), Quality Control of 636-73-7, the publication is Fain Kemikaru (2013), 42(8), 53-66, database is CAplus.

Unit processes of various heterocyclic compounds including furan derivatives, THF or its derivatives, chroman, thiophene or its derivatives, tetrahydrothiophene, pyrrole or its derivatives, pyrrolidine or its derivatives, indole derivative, pyridine derivatives, piperidine derivatives, and quinoline or its derivatives are described. Thus, 2,6-dibromo-4-nitrophenol 8, glycerin 20, and concentrated H₃PO₄ 12 g were charged to a 3-neck flask fitted with a stirrer, a reflux condenser, and a thermometer, cooled, treated slowly with concentrated H₂SO₄ with stirring well, heated in a oil bath at 150-160° for 3 h with gentle refluxing, and cooled. Water (∼150 mL) was added to the flask content solidified, throughly pulverized, and filtered to sep. the insoluble residue and the filtrate. The insoluble residue was immersed in warm 5% aqueous HCl solution and left to be cooled to readily precipitate colorless needle crystals which were filtered off. The filtrate was concentrated to give addnl. crystalline salt. The combined crystalline salt (3.55 g) was added to slightly acidic aqueous Na₂CO₃ solution, throughly stirred, left to stand for ∼20 min, and the free amine formed (2.87 g) was filtered off and recrystallized from acetone to give 7-bromo-6-hydroxyquinoline. The filtrate from the aqueous Na₂CO₃ solution was neutralized with Na₂CO₃, followed by filtering off the precipitated free amine (0.72 g) and recrystallization from acetone to give 7-bromo-6-hydroxyquinoline in ∼62% as crude product.

Fain Kemikaru published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C4H7BN2O2, Quality Control of 636-73-7.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

El Ali, Bassam published the artcileRh₆(CO)₁₆-H₃PW₁₂O₄₀-catalyzed one pot hydroformylation-cyclotrimerization of cyclohexene and cyclopentene to 2,4,6-trisubstituted 1,3,5-trioxanes, Recommanded Product: Pyridine-3-sulfonic acid, the publication is Journal of Molecular Catalysis A: Chemical (2003), 203(1-2), 53-58, database is CAplus.

One-pot hydroformylation-cyclotrimerization of cyclopentene and cyclohexene was selectively catalyzed by Rh₆(CO)₁₆ and H₃PW₁₂O₄₀·xH₂O (HPA-W₁₂) in THF at 40 atm (CO/H₂ = 1/1) and afforded 2,4,6-tris(cycloalkyl)-1,3,5-trioxanes as major products along with the corresponding aldehydes.

Journal of Molecular Catalysis A: Chemical published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Recommanded Product: Pyridine-3-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Guven, Alaattin published the artcileAcidity study on 3-substituted pyridines, Recommanded Product: Pyridine-3-sulfonic acid, the publication is International Journal of Molecular Sciences (2005), 6(11), 257-275, database is CAplus.

A comprehensive theor. study for the protonation of some 3-substituted pyridines has been carried out in aqueous solution (ε=78.4) by semi empirical AM1 method in MOPAC2000 and PM5 method in MOPAC2002. Solvent effect was accounted for implicitly by means of the conductor like screening model (COSMO). The acidity constants of these pyridine derivatives have been calculated The tautomeric and/or conformational equilibrium for these compounds, where available, were also taken into account to find out the mol fractions of the species in aqueous media. The results obtained from the calculations were compared with the available exptl. values, and the results indicate a considerable agreement with available exptl. data.

International Journal of Molecular Sciences published new progress about 636-73-7. 636-73-7 belongs to pyridine-derivatives, auxiliary class Pyridine,Sulfonic acid, name is Pyridine-3-sulfonic acid, and the molecular formula is C5H5NO3S, Recommanded Product: Pyridine-3-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem