Category: pyridine-derivatives

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 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 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 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 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

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 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

On March 3, 1994, Rewcastle, Gordon W.; Denny, William A. published an article.Quality Control of N,3-Dimethylpyridin-2-amine The title of the article was Lithiation routes to oxindoles and 2-indolinethiones: precursors to 2,2′-dithiobisindoles with tyrosine kinase inhibitory properties. And the article contained the following:

N-Substituted oxindoles, e.g. I, and 2-indolinethiones can be prepared by lithiation of carboxyl protected N,2-dimethylanilines followed by quenching with CO2 or CS2 resp. 2-Indolinethione derivatives are also available via demethylation of 2-methylthioindoles, which are prepared by lithiation of N-substituted indoles and treatment with di-Me disulfide. The experimental process involved the reaction of N,3-Dimethylpyridin-2-amine(cas: 156267-13-9).Quality Control of N,3-Dimethylpyridin-2-amine

The Article related to dithiobisindole preparation tyrosine kinase inhibitory, oxindole substituted, indolinethione substituted, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Quality Control of N,3-Dimethylpyridin-2-amine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On November 7, 1995, Dobrusin, Ellen M.; Showalter, Howard D. H.; Denny, William A.; Palmer, Brian D.; Rewcastle, Gordon W.; Tercel, Moana; Thompson, Andrew M. published a patent.Related Products of 156267-13-9 The title of the patent was Preparation of 2-indolyldisulfides and analogs as protein tyrosine kinase inhibitors and antitumor agents. And the patent contained the following:

Title compounds [I; R1 = H, halo, alkyl, alkoxy, etc.; R2 = (acyl)alkyl, acyl, CH:CHCO2H, etc.; R3 = H, alkyl, CH2Ph; R4 = SH, SnR, SeH, SenR, etc.; R = H, alkyl, (hetero)aryl, I in which R4 = bond, etc.; R4R5 = S, Se; R5R6 = bond; R6 = H; n = 1-3] were prepared 2Hus, 1-methyl-2-indolinone was treated with P2S5 and the product condensed with PhNCO to give, after oxidation, title compound II which had IC50 of 3-4μM against growth factor mediated mitogenesis in vitro. The experimental process involved the reaction of N,3-Dimethylpyridin-2-amine(cas: 156267-13-9).Related Products of 156267-13-9

The Article related to indolyldisulfide preparation protein tyrosine kinase inhibitor, antitumor indolyldisulfide preparation, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Related Products of 156267-13-9

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 15, 2021, Oderinde, Martins S.; Ramirez, Antonio; Dhar, T. G. Murali; Cornelius, Lyndon A. M.; Jorge, Christine; Aulakh, Darpandeep; Sandhu, Bhupinder; Pawluczyk, Joseph; Sarjeant, Amy A.; Meanwell, Nicholas A.; Mathur, Arvind; Kempson, James published an article.Recommanded Product: Methyl 5-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate The title of the article was Photocatalytic Dearomative Intermolecular [2 + 2] Cycloaddition of Heterocycles for Building Molecular Complexity. And the article contained the following:

Indole and indoline rings are important pharmacophoric scaffolds found in marketed drugs, agrochems., and biol. active mols. The [2 + 2] cycloaddition reaction is a versatile strategy for constructing architecturally interesting, sp3-rich cyclobutane-fused scaffolds with potential applications in drug discovery programs. A general platform for visible-light mediated intermol. [2 + 2] cycloaddition of indoles with alkenes has been realized. A substrate-based screening approach led to the discovery of tert-butyloxycarbonyl (Boc)-protected indole-2-carboxyesters as suitable motifs for the intermol. [2 + 2] cycloaddition reaction. Significantly, the reaction proceeds in good yield with a wide variety of both activated and unactivated alkenes, including those containing free amines and alcs., and the transformation exhibits excellent regio- and diastereoselectivity. Moreover, the scope of the indole substrate is very broad, extending to previously unexplored azaindole heterocycles that collectively afford fused cyclobutane containing scaffolds that offer unique properties with functional handles and vectors suitable for further derivatization. DFT computational studies provide insights into the mechanism of this [2 + 2] cycloaddition, which is initiated by a triplet-triplet energy transfer process. The photocatalytic reaction was successfully performed on a 100 g scale to provide the dihydroindole analog. The experimental process involved the reaction of Methyl 5-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate(cas: 1234616-83-1).Recommanded Product: Methyl 5-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate

The Article related to regioselective diastereoselective photocatalytic dearomative intermol cycloaddition indole alkene, Heterocyclic Compounds (One Hetero Atom): Indoles, Indolizines, Carbazoles, and Other Arenopyrroles and other aspects.Recommanded Product: Methyl 5-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem