Tag: 100-200

On January 31, 2011, Guo, Peng; Wang, Jing; Wang, Gang; Li, Shen-jie; Huang, Wen-zhi; Lin, Yu-han; Xu, Guo-hai; Pan, Dao-cheng published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Two three-dimensional pillar-layer AgI-frameworks with helical arrays containing hexamine. And the article contained the following:

Two three-dimensional pillar-layer AgI-frameworks with helical arrays were synthesized at room temperature Compound 1, {[Ag2(H2O)(L2)2L1]·H2O}n (L1 = hexamethylenetetramine, HL2 = 3-pyridinesulfonic acid), is constructed from two-dimensional (6,3) layers which are braced by helical arrays; compound 2, {[Ag3(L1)2(L3)]·6H2O}n (H3L3 = citric acid), is created by two-dimensional layers which are made up of the mix-helical arrays and further pillared by L3 anions and Ag ions. Compounds 1 and 2 were characterized by single-crystal x-ray structure determination, powder X-ray diffraction, IR and TGA. Also, the water and methanol adsorption isotherms for compound 1 were studied. 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 silver hexamethylenetetramine pyridinesulfonate citrate polymeric complex preparation crystal structure, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On July 25, 1994, Hurh, Byungserk; Tamane, Tsuneo; Nagasawa, Toru published an article.Product Details of 636-73-7 The title of the article was Purification and characterization of nicotinic acid dehydrogenase from Pseudomonas fluorescens TN5. And the article contained the following:

Membrane-bound nicotinic acid dehydrogenase, an enzyme that catalyzes the formation of 6-hydroxynicotinic acid from nicotinic acid, was solubilized with Triton X-100, and then purified 126-fold with an 11.1% overall recovery from nicotinic acid-induced cells of Pseudomonas fluorescens TN5. The purified enzyme appeared to be homogeneous from anal. by polyacrylamide gel electrophoresis. The enzyme had a mol. mass of approx. 80 kDa and consisted of one subunit. Some electron acceptors, such as phenazine methosulfate, K3Fe(CN)6 and nitro blue tetrazolium, acted as electron acceptors. The purified enzyme catalyzed the hydroxylation of nicotinic acid to 6-hydroxynicotinic acid at a rate of 672 μmol min-1 mg-1 of protein at 35°. It also catalyzed the hydroxylation of pyrazinecarboxylic acid, 3-pyridinesulfonic acid, and 3-cyanopyridine. The purified enzyme exhibited an optimum pH of 8.3, and was sensitive to thiol reagents such as HgCl2 and p-chloromercuribenzoate. A reduction in the amount of the cytochrome c-like component in the respiratory particles was observed during the hydroxylation reaction of nicotinic acid. Thus, nicotinic acid dehydrogenase appeared to be linked to the cytochrome respiratory chain in the cells of P. fluorescens TN5. 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 pseudomonas nicotinate dehydrogenase, respiratory chain coupling nicotinate dehydrogenase pseudomonas, Enzymes: Separation-Purification-General Characterization and other aspects.Product Details of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jia, Jing-jing; Zhang, Ling-kai; Li, Shi-xiong; Jiang, Yi-min; Pei, Luo; Yin, Xiu-ju; Liao, Bei-ling published an article in 2017, the title of the article was Synthesis, structure and magnetic analysis of the cobalt polymer based on N-[(3-pyridine)-sulfonyl]aspartate.Recommanded Product: Pyridine-3-sulfonic acid And the article contains the following content:

One new cobalt polymer [Co(L)·3H2O]n (1, H2L = N-[(3-pyridine)-sulfonyl]aspartate) has been synthesized and characterized by single-crystal x-ray diffraction and elemental anal. Polymer 1 belongs to the monoclinic system, space group P21/n with a = 11.479(2), b = 7.3180(15), c = 16.424(3) Å, β = 109.56(3) °, V = 1300.1(5) Å3, Mr = 385.22, Z = 12, F(000) = 790, S = 1.054, R = 0.0670, wR = 0.1147,(Δρ)max = 1.158 and (Δρ)min = -0.754 e/Å3. TGA showed that the polymer first lost one coordinated water mol. and then another two coordinated water mols. The values of the Curie and Curie-Weiss constants of polymer 1 are Cm = 2.67 cm3 mol-1 K and θ = -21.66 K. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Recommanded Product: Pyridine-3-sulfonic acid

The Article related to cobalt pyridinesulfonylaspartate coordination polymer preparation crystal mol structure magnetic, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Recommanded Product: Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Hurley, Nicholas J.; Rawson, Jeremy M.; Pilkington, Melanie published an article in 2015, the title of the article was 3,3′-Di(pyrazinamoyl)-2,2′-bipyridine: rational ligand design for the self-assembly of a 1-D coordination polymer.Recommanded Product: 75449-26-2 And the article contains the following content:

A new ligand, 3,3′-di(pyrazinamoyl)-2,2′-bipyridine, L3H2 was prepared and is comprised of distinct binding domains capable of facilitating the formation of coordination polymers. Reaction of L3H2 with [Cu2(OAc)4(H2O)2] in the presence of Et3N·HCl affords {[Cu3(L3)(Cl)(OAc)3]·H2O·MeOH}n (1) in which the [L3]2- anion binds two unique copper ions in a bis-tridentate fashion via amide and pyridyl N atoms. This bimetallic unit is linked to an equivalent unit via a pair of 1,3-acetato and μ-chloro bridges to afford a tetrameric [Cu4(L3)2Cl2(OAc)2] core. Coordination of one of the pyrazole substituents from each ligand to a third copper center of a rigid paddlewheel [Cu2(OAc)4] unit leads to a unique 1-dimensional polymeric structure. Magnetic studies of 1 reveal that the magnetism can be described in terms of two sets of exchange interactions; strong antiferromagnetic interactions between the two copper centers within the paddle-wheel (J/k = -190 K) and a combination of weaker ferro- and antiferro-magnetic interactions within the tetrameric core (J’/k = -5.7 K and J”/k = +2.1 K). The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Recommanded Product: 75449-26-2

The Article related to copper bipyridinebisamidopyrazine acetato complex preparation crystal structure magnetism, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Recommanded Product: 75449-26-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 31, 1992, Cotton, F. Albert; Daniels, Lee M.; Murillo, Carlos A. published an article.Synthetic Route of 636-73-7 The title of the article was Synthesis and x-ray structure of two relatively air-stable chromium(II) 3-pyridinesulfonate compounds. And the article contained the following:

[Cr(pySO3)2(H2O)2]n (I; pySO3H = 3-pyridinesulfonic acid) and Cr(pySO3)2(py)4 (II) were prepared and crystal structures determined I crystallizes as monoclinic, space group P21/c in an extended structure, a 7.723(1), b 12.995(4), c 7.276(3) Å, β 100.24(2)°, Z = 2, R = 0.032, Rw = 0.046. II possesses a mol. structure and crystallizes as monoclinic, space group C2/c, a 17.084(4), b 11.031(3), c 17.828(7) Å, β 112.02(2)°, Z = 4, R = 0.031, Rw = 0.043. The coordination about the Cr atoms is, in both cases, highly distorted. Both compounds are relatively stable towards O in the solid state, especially I. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Synthetic Route of 636-73-7

The Article related to crystal structure chromium pyridinesulfonato complex, sulfonato pyridine chromium complex, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Synthetic Route of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On April 12, 2019, Wu, Fengshou; Yue, Liangliang; Zhu, Sizhe; Wang, Kai; Sun, Qi published a patent.Quality Control of [2,2′-Bipyridine]-3,3′-diamine The title of the patent was Preparation method of metal ruthenium nano material, and its application as antitumor drug. And the patent contained the following:

The preparation method of metal ruthenium nano material includes (1) preparing metal ruthenium coordination compound by using amino-containing polypyridine ligands (5-amino-1,10-phenanthroline, 2-amino-1,10-phenanthroline, etc.) and ruthenium trichloride, dissolving in citric acid solution, malic acid solution or oxalic acid solution, and ultrasonically dispersing for 10-40 min to obtain mixture A; (2) heating at 140-220°C for 1-5 h to obtain mixture B; (3) adjusting pH to 6.8-7.4 with alk. reagent, dialyzing for 2-48 h, collecting dialyzate, and freeze drying to obtain final product. The metal ruthenium nano material can be used to prepare antitumor drug. The ruthenium nano material has good water solubility, strong light stability, high fluorescence quantum yield, good photodynamic therapy effect for tumors, and good biocompatibility. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Quality Control of [2,2′-Bipyridine]-3,3′-diamine

The Article related to ruthenium nano material preparation antitumor drug, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Quality Control of [2,2′-Bipyridine]-3,3′-diamine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 3, 2021, Zhang, Huimiao; Toy, Patrick H. published an article.Quality Control of [2,2′-Bipyridine]-3,3′-diamine The title of the article was Halogen Bond-Catalyzed Friedel-Crafts Reactions of Furans Using a 2,2′-Bipyridine-Based Catalyst. And the article contained the following:

A halogen bond donor based on a 2,2′-bipyridine framework I has been synthesized, and used to catalyze Friedel Crafts reactions of furans II (R = H, Me, t-Bu). Electrophiles used successfully in these reactions included various enones such as 3-buten-2-one, crotonophenone, cyclohexenone, etc.; benzaldehyde, and acetic anhydride. The yields of the reactions were generally good using a moderate catalyst loading (0.025 or 0.1 equivalent) at a relatively low temperature (room temperature or 50°C) in acetonitrile. The catalyst was designed with a biaryl scaffold so that if it indeed proved to be an efficient halogen bond donor organocatalyst, an enantioenriched version of it could potentially serve as a stereoselective catalyst. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Quality Control of [2,2′-Bipyridine]-3,3′-diamine

The Article related to furan electrophile friedel craft reaction halogen bond bipyridine catalyst, Heterocyclic Compounds (One Hetero Atom): Furans and other aspects.Quality Control of [2,2′-Bipyridine]-3,3′-diamine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On May 14, 1991, Kawase, Jiro; Tagami, Hidetoshi; Yoshihara, Toru published a patent.Recommanded Product: 51566-22-4 The title of the patent was Hair dyes containing 2-amino-3-methyl-6-aminopyridine. And the patent contained the following:

Dyeing compositions for keratin fibers (e.g. hair) contain developers and 2-amino-3-methyl-6-aminopyridine (I) or its salt as a coupling agent. p-Phenylenediamine (0.01 mol) and 0.01 mol I were mixed with 100 g aqueous solution containing oleic acid 10, oleic acid diethanolamide 8, oleyl alc. 2, polyoxyethylene octyldodecyl ether 10, EtOH 15, propylene glycol 10, NH4Cl 3, and 25% ammonia 7% by weight, and mixed with aqueous H2O2 to give a dyeing composition Gray hair was treated with the composition The experimental process involved the reaction of 3-Methylpyridine-2,6-diamine(cas: 51566-22-4).Recommanded Product: 51566-22-4

The Article related to hair dyeing aminopyridine derivative, keratin fiber dyeing pyridine derivative, Essential Oils and Cosmetics: Hair Preparations and other aspects.Recommanded Product: 51566-22-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 1, 2013, Gezerman, A. O.; Corbacioglu, B. D. published an article.COA of Formula: C5H5NO3S The title of the article was Iron(II) acetylacetonate containing brightener and sulphur containing carrier in nickel plating. And the article contained the following:

The effects of an Fe(II) acetylacetonate containing brightening agent and a carrier on color and mech. properties of Ni plating were studied to determine optimal electroplating process parameters. The brightening agent contained metasulfobenzaldehyde, pyridine-3-sulfonic acid, p-vinylbenzenesulfonic acid, o-benzoylsulfonamide, Na saccharine and Fe(II) acetylacetonate. The carrier comprised Na saccharine and Na allyl sulfonate in H2O. Plating color was analyzed by visible region spectrophotometry at 350 nm under 6500 K illumination (CIE Standard Illuminant D65). Electron microscopy confirmed that carrier facilitated Ni deposition onto the surface and increased cohesion, thus allowing complete coverage. Also, brightening agent increased the bath pH, while carrier did not. In bending experiments on a coated plate, brightening agent increased H embrittlement, although desired decorative appearance was obtained. Finally, the optimum concentrations of carrier and brightening agent are 12 and 0·4 g L-1, resp. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).COA of Formula: C5H5NO3S

The Article related to iron acetylacetonate brightener additive carrier nickel plating, Electrochemistry: Industrial Cathodic Processes and other aspects.COA of Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 1, 1994, Yuasa, Makoto; Tsutsumi, Takeo; Miyadate, Yasuo; Ohtani, Yutaka; Sekine, Isao; Kuzushima, Toshio published an article.Electric Literature of 636-73-7 The title of the article was Synergistic effect of organic additives and pulse-current plating in a gold electrodeposition acid bath and gold plating film corrosion resistance. And the article contained the following:

Effects of addition of pyridine derivatives such as aminopyridines and pyridinesulfonic acids into a citric acid-base Au electrodeposition solution were discussed. Using both pyridine additives and pulse current effectively lowered porosity and increased deposition efficiency compared to using only d.c. or pulse current and both d.c. and pyridine additives. 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 pulse current gold electrodeposition pyridine additive, Electrochemistry: Industrial Cathodic Processes and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem