Results 21 to 30 of about 38,585 (330)
Molecules, 2021 Cu-catalyzed 1,3-dipolar cycloaddition of methyl 2-azidoacetate to iodobuta-1,3-diynes and subsequent Suzuki-Miyaura cross-coupling were used to synthesize new triazoles derivatives: 5-aryl-4-arylethynyl-1H-1,2,3-triazoles. Investigation of their optical
Mariia M. Efremova +4 more
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Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2014 The creation and improvement of the original domestic medicines is anactual problem of medical and pharmaceutical industries. Chemistry of heterocyclicsystems attracts scientists all over the world, as it is associated with a number of properties of this
R. О. Shcherbyna +3 more
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Synthesis of Some Novel 1-(Substituted Phenyl)-2-(4-(Trimethylsilyl)-1H-1,2,3-Triazol-1-yl) Ketones [PDF]
, 2015 A facile and highly efficient method for the regioselective one-pot synthesis of a series of novel 1-(substituted phenyl)-2-(4-(trimethylsilyl)-1H-1,2,3-triazol-1-yl)ketones from 2-bromo-1-(substituted phenyl)ketones, sodium azide, and
Hari Prasad, S., Venkatesh, G.B.
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Chemical properties of amino- and thio-derivatives of 1,2,4-triazoles
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015 Aim. A number of references of the last ten years have been carefully studied with bibliosemantic method to compile information on the participation of 1,2,4-triazoles in chemical reactions. Introduction of new domestic drugs intopractice, which could
A. G. Kaplaushenko
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The gas phase cyclization of deprotonated N-aryl-2-cyano-2-diazoacetamides [PDF]
, 2005 The document attached has been archived with permission from the publisher.1-Aryl-4-cyano-5-hydroxy-1,2,3-triazoles can be obtained in solution by base-catalysed cyclization of N-aryl-2-cyano-2-diazoacetamides.
Bilusich, D. +6 more
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Triazole-Directed Pd-Catalyzed C(sp2)–H Oxygenation of Arenes and Alkenes [PDF]
, 2016 Selective Pd-catalyzed C(sp2)–H oxygenation of 4-substituted 1,2,3-triazoles is described. Unlike previous metal-catalyzed C–H functionalization events, which preferentially occur at the activated heterocyclic C–H bond, the regioselective oxygenation of ...
Aizpurua Iparraguirre, Jesús María +2 more
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Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015 Aim. We have continued the study of 1,2,4-triazole derivatives, which contain 2-, 3- , 4-methoxyphenyl or 3,4,5- methoxyphenyl substituents in 5th position of the triazole nucleus.
Yu. G. Samelyuk , A. G. Kaplaushenko
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Selective C(sp2)−H Halogenation of "click" 4-Aryl-1,2,3-triazoles [PDF]
, 2017 Selective bromination reactions of “click compounds” are described. Electron-neutral and electron-deficient arenes selectively undergo unprecedented Pd-catalyzed C–H ortho-halogenations assisted by simple triazoles as modular directing groups, whereas ...
Correa Navarro, Arkaitz +2 more
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International Journal of Electrochemical Science, 2012 The corrosion inhibition properties of three triazoles derivatives namely 4-amino-5-phenyl-4H-1, 2, 4,-triazole-3-thiol (APTT), 4-amino-5-(2-hydroxy) phenyl-4H-1, 2, 4,-triazole-3-thiol, (AHPTT), 4-amino-5-styryl-4H-1, 2, 4,-triazole-3-thiol, (ASTT) on ...
M.A. Quraishi +3 more
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Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]
, 2011 A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W. +2 more
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