Results 41 to 50 of about 104,064 (339)

CHEMICAL PROPERTIES AND APPLICATIONS OF NITROPYRIDINES

Siberian Journal of Life Sciences and Agriculture, 2023
Background. Pyridines are one of the most common heterocycles, the derivatives of which are widely used in pharmaceuticals, agrochemistry, and also in the production of new materials.
Evgeniya V. Ivanova, Irina I. Surova, Maria B. Nikishina, Loik G. Mukhtorov, Irina V. Shahkeldyan, Yuri M. Atroshchenko   +5 more
doaj   +1 more source

Pyridine-Based Heterocycles. Synthesis of New Pyrido [4',3':4,5]thieno[2,3-d]pyrimidines and Related Heterocycles

Molecules, 2010
The synthesis of the title compounds was achieved using ethyl 2-amino-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate (1) as starting material.
Hussein El-Kashef, Abdel-Rahman Farghaly, Ahmed Al-Hazmi, Thierry Terme, Patrice Vanelle   +4 more
doaj   +1 more source

Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene [PDF]

, 2013
A series of 2-(2-benzhydrylnaphthyliminomethyl)pyridine derivatives (L1–L3) was prepared and used to synthesize the corresponding bis-ligated nickel(II) halide complexes (Ni1–Ni6) in good yield.
Cao, Xiao Ping, Cao, Xiao-Ping, Redshaw, Carl, Shi, Qisong, Sun, Wen Hua, Sun, Wen-Hua, Wang, Lin, Xing, Qifeng, Yue, Erlin, Zhang, Liping   +9 more
core   +1 more source

Tizoxanide pyridine monosolvate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
IN THE TITLE COMPOUND [SYSTEMATIC NAME: 2-hy-droxy-N-(5-nitro-1,3-thia-zol-2-yl)benzamide pyridine monosolvate], C(10)H(7)N(3)O(4)S·C(5)H(5)N, the dihedral angle between the pyridine and benzamide rings is 80.55 (7)°. An intamolecular O-H⋯N hydrogen bond occurs in the tizoxanide.
Ding Li, Huaqin Zheng, Hui Deng, Yunyun Chen   +3 more
openaire   +4 more sources

Synthesis of Some New 1,3,4-Thiadiazole, Thiazole and Pyridine Derivatives Containing 1,2,3-Triazole Moiety

Molecules, 2017
In this study, 1-(5-Methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl)ethan-1-one, was reacted with Thiosemicarbazide, alkyl carbodithioate and benzaldehyde to give thiosemicarbazone, alkylidenehydrazinecarbodithioate and 3-phenylprop-2-en-1-one-1,2,3-triazole ...
Nadia A. Abdelriheem, Ali M. M. Mohamed, Abdou O. Abdelhamid   +2 more
doaj   +1 more source

Experimental and Theoretical Evidence for Nitrogen-Fluorine Halogen Bonding in Silver-Initiated Radical Fluorinations [PDF]

, 2019
We report experimental and computational evidence for nitrogen–fluorine halogen bonding in Ag­(I)-initiated radical C–H fluorinations. Simple pyridines form [N–F–N]+ halogen bonds with Selectfluor to facilitate single-electron reduction by catalytic Ag ...
Baker, Sarah I, Baxter, Ryan D, Bidwell, Samantha L, Hratchian, Hrant P, Hua, Alyssa M   +4 more
core   +5 more sources

Pyridine-2,5-diamine [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title mol-ecule, C5H7N3, intra-cyclic angles cover the range 117.15 (10)-124.03 (11)°. The N atoms of the amino groups have trigonal-pyramidal configurations deviating slightly from the pyridine plane by 0.106 (2) and -0.042 (2) Å. In the crystal, the pyridine N atom serves as an acceptor of an N-H⋯N hydrogen bond which links two mol-ecules into
Draguta, S., Khrustalev, V., Fonari, M.S., Antipin, M.Y., Timofeeva, T.V.   +4 more
openaire   +5 more sources

Synthesis, Molecular Docking Study, and Cytotoxicity Evaluation of Some Novel 1,3,4-Thiadiazole as Well as 1,3-Thiazole Derivatives Bearing a Pyridine Moiety

Molecules, 2022
Pyridine, 1,3,4-thiadiazole, and 1,3-thiazole derivatives have various biological activities, such as antimicrobial, analgesic, anticonvulsant, and antitubercular, as well as other anticipated biological properties, including anticancer activity.
Amr S. Abouzied, Jehan Y. Al-Humaidi, Abdulrahman S Bazaid, Husam Qanash, Naif K. Binsaleh, Abdulwahab Alamri, Sheikh Muhammad Ibrahim, Sobhi M. Gomha   +7 more
doaj   +1 more source

The Synthesis of Diverse Annulated Pyridines with 6-Membered Functionalized Saturated Cycles for Medical Chemistry Research

Журнал органічної та фармацевтичної хімії, 2023
The article describes a set of pyridines annulated with functionalized 6-membered saturated rings, which are attractive building blocks for the synthesis of diversified compound libraries in medical chemistry.
Dmytro V. Yehorov, Andrii I. Subota
doaj   +1 more source

Substituted pyridines [PDF]

Chemistry of Heterocyclic Compounds, 1966
A number of amides and hydrazides of 4-phenyl-2,5-pyridine dicarboxylic acids are synthesized. © 1966 The Faraday Press, Inc.
Prostakov N.S., Mikheeva N.N., Phalgumani D., Mathew K.J.   +3 more
openaire   +3 more sources