Results 11 to 20 of about 571,236 (265)

Revisiting the Synthesis of Functionally Substituted 1,4-Dihydrobenzo[e][1,2,4]triazines

Molecules, 2022
A series of novel 1,4-dihydrobenzo[1,2,4][e]triazines bearing an acetyl or ester moiety as a functional group at the C(3) atom of the 1,2,4-triazine ring were synthesized.
Margarita A. Epishina, Alexander S. Kulikov, Leonid L. Fershtat   +2 more
doaj   +1 more source

5-((8-Hydroxyquinolin-5-yl)diazenyl)-3-methyl-1H-pyrazole-4-carboxylic Acid

Molbank, 2021
A new azo compound was prepared via the azo coupling reaction between 4-(ethoxycarbonyl)-3-methyl-1H-pyrazole-5-diazonium chloride and 8-hydroxyquinoline (oxine).
Ion Burcă, Valentin Badea, Calin Deleanu, Vasile-Nicolae Bercean   +3 more
doaj   +1 more source

Structure and swelling of polymer-clay composites

Eurasian Chemico-Technological Journal, 2009
Composition gels on the basis of bentonite clay of Manrak deposit (East-Kazakhstan region) and nonionogenic polymers - poly-2-hydroxyethyl-acrylate and polyacrylamide were synthesized by radical intercalative polymerization in situ with various content ...
R. S. Iminova, Sh. N. Zhumagalieva, M. K. Beisebekov, Zh. A. Abilov, G. A. Mun   +4 more
doaj   +1 more source

(±)-2-{[4-(4-Bromophenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]sulfanyl}-1-phenyl-1-ethanol

Molbank, 2021
The novel racemic secondary alcohol (±)-2-{[4-(4-bromophenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]sulfanyl}-1-phenyl-1-ethanol (12) has been successfully synthesized through S-alkylation of 4-(4-bromophenyl)-5-phenyl-4H-1,2,4-triazole-3-thiol (10) in alkaline
Milenca Mariana Vorga, Valentin Badea
doaj   +1 more source

Data for the synthesis and characterisation of 2,6-di(bromomethyl)-3,5-bis(alkoxycarbonyl)-4-aryl-1,4-dihydropyridines as important intermediates for synthesis of amphiphilic 1,4-dihydropyridines

Data in Brief, 2020
This data file describes the synthetic protocol for preparation of the original 2,6-di(bromomethyl)-3,5-bis(alkoxycarbonyl)-4-aryl-1,4-dihydropyridines. In total, 6 unpublished compounds were obtained and characterised.
Martins Rucins, Klavs Pajuste, Arkadij Sobolev, Mara Plotniece, Nadiia Pikun, Karlis Pajuste, Aiva Plotniece   +6 more
doaj   +1 more source

(R,S)-2-{[4-(4-Methylphenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]thio}-1-phenyl-1-ethanol

Molbank, 2021
4-(4-Methylphenyl)-5-phenyl-4H-1,2,4-triazol-3-thiol (4) was alkylated to 2-{[4-(4-methylphenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]thio}-1-phenylethan-1-one (5) in alkaline conditions using 2-bromo-1-phenylethanone. The alkylated compound (5) was reduced at
Vladislav-Silvestru Valicsek, Valentin Badea   +1 more
doaj   +1 more source

Construction of bis-, tris- and tetrahydrazones by addition of azoalkenes to amines and ammonia

Beilstein Journal of Organic Chemistry, 2016
Exhaustive Michael-type alkylations of amines and ammonia with azoalkenes (generated from α-halohydrazones) were demonstrated as an efficient approach to poly(hydrazonomethyl)amines – a novel class of polynitrogen ligands.
Artem N. Semakin, Aleksandr O. Kokuev, Yulia V. Nelyubina, Alexey Yu. Sukhorukov, Petr A. Zhmurov, Sema L. Ioffe, Vladimir A. Tartakovsky   +6 more
doaj   +1 more source

(R,S)-2-{[4-(4-Methoxyphenyl)-5-phenyl-4H-1,2,4-triazol-3-yl] thio}-1-phenyl-1-ethanol

Molbank, 2021
4-(4-Methoxyphenyl)-5-phenyl--4H-1,2,4-triazole-3-thiol (4) was alkylated to 2-{[4-(-4-methoxyphenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]thio}-1-phenylethan-1-one (5) in alkaline conditions using 2-bromo-1-phenylethanone.
Flavius-Gabriel Wurfer, Valentin Badea
doaj   +1 more source

Recent Advances in the Synthesis and Biomedical Applications of Heterocyclic NO-Donors

Molecules, 2021
Nitric oxide (NO) is a key signaling molecule that acts in various physiological processes such as cellular metabolism, vasodilation and transmission of nerve impulses.
Leonid L. Fershtat, Egor S. Zhilin
doaj   +1 more source

(Energies of organic compounds) [PDF]

, 1989
The enthalpy of reduction of lactones to the corresponding diols has been determined, allowing the enthaipies of formation of the lactones to be determined. Results of this study agree well with data obtained for enthalpies of hydrolysis of the lactones.
openaire   +4 more sources