Category: 636-73-7

Carballo, Rosa; Fernandez-Hermida, Nuria; Lago, Ana B.; Rodriguez-Hermida, Sabina; Vazquez-Lopez, Ezequiel M. published an article in 2012, the title of the article was Supramolecular networks through second-sphere coordination based on 1D metal-4,4′-dipyridyldisulfide coordination polymers and hydrogenfumarate or sulfonate anions.Quality Control of Pyridine-3-sulfonic acid And the article contains the following content:

Four H-bonded assemblies [M(dpds)2(OH2)2]A2·nH2O (A = anion) are described. These assemblies result from the 2nd-sphere coordination interactions between the 1-dimensional coordination polymers [M(dpds)2(OH2)2]2+, M = Zn(II), and Cu(II), dpds = 4,4′-dipyridyldisulfide, and the pyridine-3-sulfonate (3pySO3-) or hydrogenfumarate (Hfum-) anions. Significantly, supramol. structural variations are observed depending on the presence of H2O lattice mols., which formed discrete aggregates when the Hfum- anion was used. The effects of geometrical variations in the building blocks are also evident on using Jahn-Teller-distorted divalent Cu(II) ions or regular octahedral species based on Zn(II) ions. The 2nd-sphere effects on the stabilization of the compounds are illustrated by TGA experiments 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 preparation copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion, crystal structure copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion, supramol structure copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion and other aspects.Quality Control of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 31, 1979, Sadikov, A. S.; Otroshchenko, O. S.; Yunusov, T. K. published an article.Category: pyridine-derivatives The title of the article was Sulfur-containing derivatives of anabasine and its analogs. And the article contained the following:

Treatment of anabasine, isoanabasine and 2,3′-dipiperidyl with SOCl2, SCl2, elemental S, concentrated H2SO4, and sulfoacids of N heterocyclic bases gave a series of biol. active S-containing derivatives, e.g. I and II, of anabasine and its analogs. Dependences between the structure of substrates and their chem. reactivity were discussed. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Category: pyridine-derivatives

The Article related to anabasine reaction sulfur compound, isoanabasine reaction sulfur, dipiperidyl reaction sulfur, sulfur reaction anabasine, thionyl chloride reaction anabasine, sulfur chloride reaction anabasine, sulfuric acid reaction anabasine, sulfo acid reaction anabasine and other aspects.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 5, 2018, Park, Hojoon; Chekshin, Nikita; Shen, Peng-Xiang; Yu, Jin-Quan published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Ligand-Enabled, Palladium-Catalyzed β-C(sp3)-H Arylation of Weinreb Amides. And the article contained the following:

Authors report the development of Pd(II)-catalyzed C(sp3)-H arylation of Weinreb amides. Both the inductive effect and the potential bidentate coordination mode of the Weinreb amides pose a unique challenge for this reaction development. A pyridinesulfonic acid ligand is designed to accommodate the weak, neutral-coordinating property of Weinreb amides by preserving the cationic character of Pd center through zwitterionic assembly of Pd/ligand complexes. D. functional theory (DFT) studies of the C-H cleavage step indicate that the superior reactivity of 3-pyridinesulfonic acid ligand, compared to Ac-Gly-OH and ligandless conditions, originates from the stabilization of overall substrate-bound Pd species. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Safety of Pyridine-3-sulfonic acid

The Article related to ligand palladium catalyzed beta carbon hydrogen arylation weinreb amide, crystal mol structure methyl fluorobenzyl methoxymethylcarbamoylcyclopropyl benzoate, mol structure calculation palladium weinreb amide complex intermediate, c(sp3)–h activation, ligand design, palladium, pyridinesulfonic acid, weinreb amide and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On April 21, 1994, Schmuelling, Michael; Ryabov, Alexander D.; van Eldik, Rudi published an article.COA of Formula: C5H5NO3S The title of the article was To what extent can the Pt-C bond of a metallacycle labilize the trans position? A temperature- and pressure-dependent mechanistic study. And the article contained the following:

The orthoplatinated complexes [Pt{C6H3X(CH2NMe2)}(NC5H4SO3-3)(H2O)] (X = H 1a or 3-MeO 1b) were designed for mechanistic studies in H2O. The aqua ligand is located trans to the Pt-C bond of the Ph group which lies in the Pt(II) coordination plane. The rates of substitution of the aqua ligand by nucleophiles (Nu) (Cl-, Br-, I-, N3-, SCN-, thiourea, N,N’-dimethylthiourea or N,N,N’,N’-tetramethylthiourea) were studied as a function of concentration, pH, temperature, and pressure by using a stopped-flow technique. The pKa value of the aqua ligand in 1a is 9.75 ± 0.505 and the observed pseudo-first-order rate constants for the substitution reaction are given by kobs = k1[Nu] + k-1. The k-1 term arises from the reverse solvolysis reaction and is insignificant for stronger, S-donor nucleophiles. The values of k1 are ∼4 orders of magnitude higher than the corresponding rate constants for anation reactions of [Pt(dien)(H2O)]2+ (dien = diethylenetriamine) and close to the rate constants for anation of [Pd(dien)(H2O)]2+. The effect is largely due to a strong decrease in ΔH⧧, ΔS⧧ and ΔV⧧, clearly shows that the substantial rate increase is not associated with a changeover in mechanism and that the substitution process is still associative. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).COA of Formula: C5H5NO3S

The Article related to substitution kinetics nucleophile aminomethylplatinum complex, platinum aminomethyl substitution kinetics nucleophile, reactivity aminomethylplatinum complex nucleophile, reaction mechanism aminomethylplatinum complex nucleophile substitution, bond platinum carbon lability aminomethylplatinum metallacycle and other aspects.COA of Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 29, 1992, Alo, Babajide I.; Familoni, Oluwole B.; Marsais, Francis; Queguiner, Guy published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Directed metalation of pyridinesulfonamides. Synthesis of pyridine-fused isothiazoles and 1,2-oxathioles. And the article contained the following:

4-Lithio-N-tert-butylpyridine-3-sulfonamide reacted with Ph2CO or CO2 to give the corresponding intermediates, which on appropriate treatment gave the addition product I (from Ph2CO reaction product) or isothiazolo[5,4-c]pyridin-3-one 1,1-dioxides II (R = H, Me3C) (from CO2 reaction product). Metalation of 2- and 4-[N,N-(dialkylamino)sulfonyl]pyridines with LiN(CHMe2)2 gave anions which reacted with Ph2CO to give carbinols, which cyclized thermally to 1,2-oxathiolo[3,4-b]- III and -[4,3-c]pyridine dioxide IV, resp. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Safety of Pyridine-3-sulfonic acid

The Article related to sultone pyridine fused, sultam pyridine fused, pyridinesulfonamide directed lithiation, isothiazolopyridinone dioxide, oxathiolopyridine, aminosulfonylpyridine lithiated reaction benzophenone, intramol cyclocondensation sulfonylpyridylmethanol and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Carballo, Rosa; Fernandez-Hermida, Nuria; Lago, Ana B.; Rodriguez-Hermida, Sabina; Vazquez-Lopez, Ezequiel M. published an article in 2012, the title of the article was Supramolecular networks through second-sphere coordination based on 1D metal-4,4′-dipyridyldisulfide coordination polymers and hydrogenfumarate or sulfonate anions.Quality Control of Pyridine-3-sulfonic acid And the article contains the following content:

Four H-bonded assemblies [M(dpds)2(OH2)2]A2·nH2O (A = anion) are described. These assemblies result from the 2nd-sphere coordination interactions between the 1-dimensional coordination polymers [M(dpds)2(OH2)2]2+, M = Zn(II), and Cu(II), dpds = 4,4′-dipyridyldisulfide, and the pyridine-3-sulfonate (3pySO3-) or hydrogenfumarate (Hfum-) anions. Significantly, supramol. structural variations are observed depending on the presence of H2O lattice mols., which formed discrete aggregates when the Hfum- anion was used. The effects of geometrical variations in the building blocks are also evident on using Jahn-Teller-distorted divalent Cu(II) ions or regular octahedral species based on Zn(II) ions. The 2nd-sphere effects on the stabilization of the compounds are illustrated by TGA experiments 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 preparation copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion, crystal structure copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion, supramol structure copper zinc dipyridyldisulfide complex pyridinesulfonate fumarate anion and other aspects.Quality Control of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 31, 1979, Sadikov, A. S.; Otroshchenko, O. S.; Yunusov, T. K. published an article.Category: pyridine-derivatives The title of the article was Sulfur-containing derivatives of anabasine and its analogs. And the article contained the following:

Treatment of anabasine, isoanabasine and 2,3′-dipiperidyl with SOCl2, SCl2, elemental S, concentrated H2SO4, and sulfoacids of N heterocyclic bases gave a series of biol. active S-containing derivatives, e.g. I and II, of anabasine and its analogs. Dependences between the structure of substrates and their chem. reactivity were discussed. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Category: pyridine-derivatives

The Article related to anabasine reaction sulfur compound, isoanabasine reaction sulfur, dipiperidyl reaction sulfur, sulfur reaction anabasine, thionyl chloride reaction anabasine, sulfur chloride reaction anabasine, sulfuric acid reaction anabasine, sulfo acid reaction anabasine and other aspects.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 5, 2018, Park, Hojoon; Chekshin, Nikita; Shen, Peng-Xiang; Yu, Jin-Quan published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Ligand-Enabled, Palladium-Catalyzed β-C(sp3)-H Arylation of Weinreb Amides. And the article contained the following:

Authors report the development of Pd(II)-catalyzed C(sp3)-H arylation of Weinreb amides. Both the inductive effect and the potential bidentate coordination mode of the Weinreb amides pose a unique challenge for this reaction development. A pyridinesulfonic acid ligand is designed to accommodate the weak, neutral-coordinating property of Weinreb amides by preserving the cationic character of Pd center through zwitterionic assembly of Pd/ligand complexes. D. functional theory (DFT) studies of the C-H cleavage step indicate that the superior reactivity of 3-pyridinesulfonic acid ligand, compared to Ac-Gly-OH and ligandless conditions, originates from the stabilization of overall substrate-bound Pd species. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Safety of Pyridine-3-sulfonic acid

The Article related to ligand palladium catalyzed beta carbon hydrogen arylation weinreb amide, crystal mol structure methyl fluorobenzyl methoxymethylcarbamoylcyclopropyl benzoate, mol structure calculation palladium weinreb amide complex intermediate, c(sp3)–h activation, ligand design, palladium, pyridinesulfonic acid, weinreb amide and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On April 21, 1994, Schmuelling, Michael; Ryabov, Alexander D.; van Eldik, Rudi published an article.COA of Formula: C5H5NO3S The title of the article was To what extent can the Pt-C bond of a metallacycle labilize the trans position? A temperature- and pressure-dependent mechanistic study. And the article contained the following:

The orthoplatinated complexes [Pt{C6H3X(CH2NMe2)}(NC5H4SO3-3)(H2O)] (X = H 1a or 3-MeO 1b) were designed for mechanistic studies in H2O. The aqua ligand is located trans to the Pt-C bond of the Ph group which lies in the Pt(II) coordination plane. The rates of substitution of the aqua ligand by nucleophiles (Nu) (Cl-, Br-, I-, N3-, SCN-, thiourea, N,N’-dimethylthiourea or N,N,N’,N’-tetramethylthiourea) were studied as a function of concentration, pH, temperature, and pressure by using a stopped-flow technique. The pKa value of the aqua ligand in 1a is 9.75 ± 0.505 and the observed pseudo-first-order rate constants for the substitution reaction are given by kobs = k1[Nu] + k-1. The k-1 term arises from the reverse solvolysis reaction and is insignificant for stronger, S-donor nucleophiles. The values of k1 are ∼4 orders of magnitude higher than the corresponding rate constants for anation reactions of [Pt(dien)(H2O)]2+ (dien = diethylenetriamine) and close to the rate constants for anation of [Pd(dien)(H2O)]2+. The effect is largely due to a strong decrease in ΔH⧧, ΔS⧧ and ΔV⧧, clearly shows that the substantial rate increase is not associated with a changeover in mechanism and that the substitution process is still associative. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).COA of Formula: C5H5NO3S

The Article related to substitution kinetics nucleophile aminomethylplatinum complex, platinum aminomethyl substitution kinetics nucleophile, reactivity aminomethylplatinum complex nucleophile, reaction mechanism aminomethylplatinum complex nucleophile substitution, bond platinum carbon lability aminomethylplatinum metallacycle and other aspects.COA of Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem