Day: November 3, 2022

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

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 May 17, 2018, Tsai, Jui-Yi; Xia, Chuanjun; Lin, Chun; Palacios, Adrian U.; Onate, Enrique; Esteruelas, Miguel A.; Boudreault, Pierre-Luc T.; Bajo, Sonia; Olivan, Montserrat published a patent.HPLC of Formula: 1349171-28-3 The title of the patent was Organic electroluminescent iridium complexes having three bidentate ligands. And the patent contained the following:

Methods of method of preparing a metal complex having the formula M(LA)(LB)(LC) are discussed which entail providing a precursor metal complex having the formula (LA)(LB)M-(X)2-M(LA)(LB), in which M is a metal, ligand LA and ligand LB (X = halogen; rings A-D are each independently selected from a 5-6 membered carbocyclic or heterocyclic ring; RA-RD each independently represent mono substitution up to the maximum possible number of substitutions, or no substitution; Z1-Z2 are each independently C or N; RA-RD, RX-RZ are independently selected from H, D, halide, alkyl, etc.; and where any adjacent substituents are optionally joined or fused into a ring); reacting the precursor metal complex with a first reagent to obtain the metal complex having the formula M(LA)(LB)(LC), where LC (RX-RZ are each independently selected from H, D, halide, alkyl, etc.), rings C’ and D’ are each independently selected from a 5-6 membered carbocyclic or heterocyclic ring; C1′ = anionic donor C atom; C2′ = neutral carbene C atom; RC’-RD’ are independently selected from H, D, halide, alkyl, etc., and rings A’ and B’ are each independently selected from a 5-6 membered carbocyclic or heterocyclic ring; Z1′ = anionic donor C atom; Z2′ = neutral N atom; RA’-RB’ are independently selected from H, D, halide, alkyl, etc. The experimental process involved the reaction of 2-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine(cas: 1349171-28-3).HPLC of Formula: 1349171-28-3

The Article related to organic electroluminescent iridium complex bidentate ligand, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.HPLC of Formula: 1349171-28-3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 15, 2014, Cha, Sun Uk; Jung, Gyeong Seok; Park, Seok Bae; Kim, Hui Dae; Lee, Yu Rim; Song, Ju Man; Hwang, Mun Chan published a patent.Formula: C9H14N2 The title of the patent was Asymmetric pyrene derivative comprising heteroaryl amine as electroluminescent dopant for organic light-emitting device. And the patent contained the following:

The present invention relates to an asym. pyrene derivative comprising heteroaryl amine, and an organic light-emitting device comprising the same. The asym. pyrene derivative comprising heteroaryl amine is represented by formula I or II (Py = substituted or unsubstituted pyridinyl; Het1-Het3 = heterogeneous atom selected from oxygen, nitrogen, sulfur and silicon, C2-C50 heteroaryl group; Z = hydrogen, deuterium, C1-C30 alkyl group, C5-C50 aryl group, C2-C30 alkenyl group, C2-C20 alkynyl group, C3-C30 cycloalkyl group, C5-C30 cycloalkenyl group, etc.; m = integer of 1-8 for formula I and 1-9 for formula II, where the substitution is selected from deuterium, cyano group, halogen, hydroxyl group, nitro group, C1-C24 alkyl group, etc.). The organic light-emitting device comprises: a first electrode; a second electrode placed opposite to the first electrode; and an organic layer placed between the first and second electrodes, where the organic layer includes an organic light-emitting compound i.e. asym. pyrene derivative The organic layer is selected from hole injection layer having hole injection function, hole transport layer having hole transport function, functional layer, light-emitting layer, electron transport layer, and electron injection layer. According to the present invention, the asym. pyrene derivative has excellent luminous efficiency and high-color purity, and is utilized in the organic light-emitting device such as flat panel display device, flexible display device, monochromatic or white flexible lighting device, etc. The experimental process involved the reaction of 6-(tert-Butyl)pyridin-3-amine(cas: 39919-70-5).Formula: C9H14N2

The Article related to asym pyrene heteroaryl amine electroluminescent dopant flat panel display, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.Formula: C9H14N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 15, 2014, Cha, Sun Uk; Jung, Gyeong Seok; Park, Seok Bae; Kim, Hui Dae; Lee, Yu Rim; Song, Ju Man; Hwang, Mun Chan published a patent.Safety of 6-(tert-Butyl)pyridin-3-amine The title of the patent was Amine group substituted asymmetric pyrene derivative comprising pyridinyl group as electroluminescent dopant and/or organic semiconductor materials for organic light-emitting device. And the patent contained the following:

The present invention relates to an amine group substituted asym. pyrene derivative, and an organic light-emitting device comprising the same. The amine group substituted asym. pyrene derivative comprising pyridinyl group is represented by formula I (Py1, Py2 = substituted or unsubstituted pyridinyl group; Ar1, Ar2 = substituted or unsubstituted C1-C30 alkyl group, substituted or unsubstituted C3-C30 cycloalkyl group, substituted or unsubstituted C5-C50 aryl group, C2-C50 heteroaryl group having one or more substituted or unsubstituted atoms selected from oxygen, nitrogen, sulfur and silicon; Z = hydrogen, deuterium, substituted or unsubstituted C1-C30 alkyl group, substituted or unsubstituted C5-C50 aryl group, substituted or unsubstituted C2-C30 alkenyl group, substituted or unsubstituted C2-C20 alkynyl group, substituted or unsubstituted C3-C30 cycloalkyl group, substituted or unsubstituted C5-C30 cycloalkenyl group, etc.; and m = integer of 1-8, where the substituted or unsubstituted substitution is selected from deuterium, cyano group, halogen, hydroxyl group, nitro group, C1-C24 alkyl group, etc.). The organic light-emitting device comprises: a first electrode; a second electrode placed opposite to the first electrode; and an organic layer placed between the first and second electrodes, where the organic layer includes an organic light-emitting compound i.e. amine group substituted asym. pyrene derivative The organic layer is selected from hole injection layer having hole injection function, hole transport layer having hole transport function, functional layer, light-emitting layer, electron transport layer, and electron injection layer. According to the present invention, the amine group substituted asym. pyrene derivative has excellent luminous efficiency and high-color purity, and is utilized in the organic light-emitting device for producing full-color display. The experimental process involved the reaction of 6-(tert-Butyl)pyridin-3-amine(cas: 39919-70-5).Safety of 6-(tert-Butyl)pyridin-3-amine

The Article related to amine group asym pyrene derivative pyridinyl electroluminescent dopant oled, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.Safety of 6-(tert-Butyl)pyridin-3-amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On September 5, 1980, Kamogawa, Hiroyoshi; Masui, Toshiaki; Nanasawa, Masato published an article.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide The title of the article was Photochemically induced reduction of viologens in solid polar aprotic polymer matrices. And the article contained the following:

Photochem. induced reversible reduction of viologens in solid polar aprotic polymer matrixes proceeds much more efficiently than in protic ones. The effects of the N-substituent and anions were discussed. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to photochem reduction viologen polymer matrix, substituent effect viologen photoreduction, Physical Organic Chemistry: Oxidation-Reduction Reactions (Including Hydrogenation) and other aspects.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 1, 2012, Wang, Wei; Yu, Wei; Yan, Yukun; Li, Jing; Li, Qiuyue published a patent.Computed Properties of 52243-87-5 The title of the patent was Organic micro-/nano-material of 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt/viologen derivative charge transfer composite and preparation method thereof. And the patent contained the following:

The organic micro-/nano-material consists of organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and organic electron acceptor viologen derivative The organic micro-/nano-material is prepared by: dissolving organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and organic electron acceptor viologen derivative in good solvent, adding poor solvent; constant temperature aging the solution, slowly volatilizing the good solvent, obtaining organic micro-/nano-material single crystal. The organic micro-/nano-material is also prepared by: dissolving organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt in solvent I, slowly adding buffer solution, enriching the organic electron donor in the solvent I; dissolving the electron acceptor viologen derivative in solvent II, slowly adding the solution to the organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt solution, enriching the organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt in the solvent II, standing and aging, obtaining organic micro-/nano-material single crystal at the solvent interface. The invention has the advantages of easy raw material resource, simple preparation process, good crystallization property; and has wide application prospects in organic semiconductor or organic conductor etc. fields. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Computed Properties of 52243-87-5

The Article related to organic micro material pyrenetetrasulfonic acid tetrasodium salt viologen, crystal mol structure viologen pyrenetetrasulfonate sodium salt, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.Computed Properties of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On May 23, 2013, Wang, Yansong; Kirschner, Alexander; Fabian, Anne-Katrin; Gopalakrishnan, Ranganath; Kress, Christoph; Hoogeland, Bastiaan; Koch, Uwe; Kozany, Christian; Bracher, Andreas; Hausch, Felix published an article.Formula: C9H8N2O2 The title of the article was Increasing the Efficiency of Ligands for FK506-Binding Protein 51 by Conformational Control. And the article contained the following:

The design of efficient ligands remains a key challenge in drug discovery. In the quest for lead-like ligands for the FK506-binding protein 51 (FKBP51), we designed two new classes of bicyclic sulfonamides to probe the contribution of conformational energy in these ligands. The [4.3.1] scaffold had consistently higher affinity compared to the [3.3.1] or monocyclic scaffolds, which could be attributed to better preorganization of two key recognition motifs. Surprisingly, the binding of the rigid [4.3.1] scaffold was enthalpy-driven and entropically disfavored compared to the flexible analogs. Cocrystal structures at at. resolution revealed that the sulfonamide nitrogen in the bicyclic scaffolds can accept an unusual hydrogen bond from Tyr113 that mimics the putative FKBP transition state. This resulted in the first lead-like, functionally active ligand for FKBP51. Our work exemplifies how atom-efficient ligands can be achieved by careful conformational control even in very open and thus difficult binding sites such as FKBP51. The experimental process involved the reaction of Ethyl 6-cyanopicolinate(cas: 97483-79-9).Formula: C9H8N2O2

The Article related to conformational control ligand fk506 binding protein 51, Heterocyclic Compounds (More Than One Hetero Atom): Eight- and Higher-Membered Rings and other aspects.Formula: C9H8N2O2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On May 22, 2014, Magda, Darren; Xu, Jide; Butlin, Nathaniel G. published a patent.Product Details of 170235-18-4 The title of the patent was Preparation of di-macrocycles and their complexes for use in therapeutics and diagnostic applications. And the patent contained the following:

The invention relates to chem. compounds of formula I and complexes that can be used in therapeutic and diagnostic applications. Compounds of formula I wherein B1, B2, B3 and B4 are independently N, C, B, Si and P; F1 and F2 are independently H, (un)substituted alkyl, (un)substituted heteroaryl, (un)substituted aryl, etc.; L1 – L9 are independently (un)substituted alkyl, (un)substituted heteroalkyl, (un)substituted aryl, etc.; A1, A2, A3 and A4 are independently substituted aryl and (un)substituted heteroaryl; are claimed. Example compound II was prepared by a multistep procedure (procedure given). The invention compounds were evaluated for their metal chelation ability for use in therapeutic and diagnostic application (some data given). The experimental process involved the reaction of Methyl 6-bromo-5-methoxypicolinate(cas: 170235-18-4).Product Details of 170235-18-4

The Article related to dimacrocycle preparation complex therapeutic and diagnostic application, Heterocyclic Compounds (More Than One Hetero Atom): Eight- and Higher-Membered Rings and other aspects.Product Details of 170235-18-4

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

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