Category: pyridine-derivatives

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 June 28, 2019, Liu, Jinjian; Li, Jing published a patent.COA of Formula: C16H22Br2N2 The title of the patent was Two photochromic purpurine host-object MOFs material, and its preparation method and application. And the patent contained the following:

The inventive purpurine host-object MOFs material has formula of (EV)2/n[Cd(BTC)(H2O)]n·2nH2O or (PV)2/n[Cd(BTC)(H2O)]n·2nH2O, wherein EV2+ is 1,1-di(ethyl)-4,4-bipyridyl cation, and PV2+ is 1,1-di(propyl)-4,4-bipyridyl cation. One preparation method includes (1) adding 4,4-bipyridine and Et bromide in anhydrous acetonitrile, heating under reflux for 24 h, cooling, filtering, and washing to obtain 1,1-di(ethyl)-4,4-bipyridyl bromide; (2) dissolving with cadmium nitrate in deionized water; (3) dissolving 1,3,5-trimesic acid and NaOH in deionized water under heating; (4) mixing with solution of step (2), standing for 5 d, washing, and drying. The invention is simple and easy to operate, economical and non-toxic. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).COA of Formula: C16H22Br2N2

The Article related to bipyridinium cadmium trimesate mof preparation crystal structure photochromism, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.COA of Formula: C16H22Br2N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 22, 2018, Han, Zhengbo; Zhao, Siyu published a patent.Application In Synthesis of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid The title of the patent was Preparation method of indium-based metal organic anion framework material and its application in adsorption of cationic organic dye. And the patent contained the following:

The title preparation method includes (1) mixing indium nitrate, 5,5′-(pyridyl-2,5-disubstituted)-1,3-phthalic acid (H4L), N,N-dimethylformamide and nitric acid, and stirring; and (2) reacting at 353-363 K for 3 d, cooling, standing for at least 1 d, washing with N,N-dimethylformamide, filtering, and drying to obtain the final metal organic anion framework material. The material can be used in adsorption of cationic organic dyes such as methylene blue. The experimental process involved the reaction of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid(cas: 1431292-15-7).Application In Synthesis of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid

The Article related to indium pyridyl phthalate mof preparation crystal structure dye adsorption, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Application In Synthesis of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Liu, Jinjian; Li, Jing; Lu, Wenbo published an article in 2019, the title of the article was Effect of counter cations on the photochromic behaviors of three Zn-viologen complexes.Category: pyridine-derivatives And the article contains the following content:

To determine the influence of counter cations on the photochromic properties of viologen-based compounds, with the self-assembly reaction of different viologen cations (MV2+ = 1,1′-bis(methyl)-4,4′-bipyridinium dication, EV2+ = 1,1′-bis(ethyl)-4,4′-bipyridinium dication, PV2+ = 1,1′-bis(propyl)-4,4′-bipyridinium dication), Zn2+ and H3BTC (1,3,5-benzenetricarboxylic acid), three complexes (MV)0.5[Zn(BTC)(H2O)5]·2H2O (1), (EV)0.5[Zn(BTC)(H2O)5]·H2O (2), and (PV)0.5[Zn(BTC)(H2O)5]·H2O (3) have been synthesized and structurally characterized. The photochromic behavior of the three compounds has been investigated due to the presence of electron-deficient viologen fractions. Compounds 1-3 feature similar isolated structures and all exhibit electron-transfer (ET) photochromism, which can be fine-tuned by introducing different counter cations. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Category: pyridine-derivatives

The Article related to zinc viologen complex preparation structure photochromic property, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Category: pyridine-derivatives

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 August 31, 2011, Murahdharan, Balathandapani; Gopu, Gopalakrishnan; Laya, Saraswathy; Vedhi, Chinnapiyan; Manisankar, Paramasivam published an article.Name: N,N-Dimethyl-3-phenyl-3-(pyridin-2-yl)propan-1-amine maleate The title of the article was A study on preparation and use of nano poly pyrrole and nano poly (3,4-ethylenedioxythiophene) coated glassy carbon electrode for the determination of antihistamine in pharmaceutical and urine sample. And the article contained the following:

Pheniramine maleate (PA), an antihistamine, was determined by Differential Pulse Stripping voltammetry using nano polypyrrole (Ppy) and nano poly (3,4-ethylenedioxythiophene) (PEDOT) modified glassy carbon electrodes. The cyclic voltammetric behavior of pheniramine was studied in aqueous acidic, neutral and alk. conditions. One well-defined oxidation peak was observed in the cyclic voltammograms at all pHs. The influence of pH, scan rate and concentration revealed irreversible electron transfer and the oxidation was diffusion controlled adsorption. The SEM anal. confirmed good accumulation of PA on the electrode surface. A systematic study of influence of various exptl. parameters that affect the stripping voltammetric response was carried out and the maximum peak current conditions were arrived at. Calibration was made under maximum peak current conditions. The range of study was 0.05 to 0.4 μg/mL on Ppy/GCE and 0.025 to 0.4 μg/mL on PEDOT/GCE and the lower limit of determination were 0.035 μg/mL on Ppy/GCE and 0.016 μg/mL on PEDOT/GCE. The suitability of the method for the determination of PA in pharmaceutical preparations and urine samples was also ascertained. The experimental process involved the reaction of N,N-Dimethyl-3-phenyl-3-(pyridin-2-yl)propan-1-amine maleate(cas: 132-20-7).Name: N,N-Dimethyl-3-phenyl-3-(pyridin-2-yl)propan-1-amine maleate

The Article related to polypyrrole ethylenedioxythiophene glassy carbon electrode nanoparticle antihistamine pheniramine maleate, Pharmacology: Drug Interactions and General Pharmacology and other aspects.Name: N,N-Dimethyl-3-phenyl-3-(pyridin-2-yl)propan-1-amine maleate

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 7, 2003, Tabanella, Stefania; Valancogne, Ingrid; Jackson, Richard F. W. published an article.Application In Synthesis of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromopyridin-2-yl)propanoic acid The title of the article was Preparation of enantiomerically pure pyridyl amino acids from serine. And the article contained the following:

A range of substituted pyridyl amino acids have been prepared by palladium catalyzed cross-coupling of serine-derived organozinc reagents with differently substituted halopyridines. Following this procedure a DMAP analog has been synthesized and used as a building block in the preparation of two related tripeptides, which have been tested as catalysts in the kinetic resolution of trans-2-(N-acetylamino)cyclohexan-1-ol, resulting in modest enantioselectivity. The experimental process involved the reaction of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromopyridin-2-yl)propanoic acid(cas: 282734-37-6).Application In Synthesis of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromopyridin-2-yl)propanoic acid

The Article related to pyridyl amino acid preparation cross coupling organozinc serine, kinetic resolution catalyst pyridyl amino acid, Amino Acids, Peptides, and Proteins: Amino Acids and other aspects.Application In Synthesis of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromopyridin-2-yl)propanoic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On April 30, 2000, Hoffmann, Reinhard W.; Caturla, Francisco; Lazaro, Miguel A.; Framery, Eric; Carmen Bernabeu, M.; Valancogne, Ingrid; Montalbetti, Christian A. G. N. published an article.Formula: C23H19BrN2O4 The title of the article was Conformational analysis of 4-amido-2,4-dimethylbutyric acid derivatives. And the article contained the following:

Several protected 4-amido-2,4-dimethylbutyrates were prepared Both, syn- and anti-4-amido-2,4-dimethylbutyric acid derivatives were found to populate a conformation in which the amido group is gauche to the main chain of the mol. In the anti series, a single conformation predominates, in which the acid carbonyl group is also gauche to the main chain. In the syn series, two local conformers prevail about the C(2)-C(3) bond. The experimental process involved the reaction of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromopyridin-2-yl)propanoic acid(cas: 282734-37-6).Formula: C23H19BrN2O4

The Article related to amidomethylbutyrate preparation conformation, butyrate amido methyl preparation conformation, Amino Acids, Peptides, and Proteins: Amino Acids and other aspects.Formula: C23H19BrN2O4

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