Results 11 to 20 of about 4,584,770 (187)
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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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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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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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, 2005 The document attached has been archived with permission from the publisher.1-Aryl-4-cyano-5-hydroxy-1,2,3-triazoles can be obtained in solution by base-catalysed cyclization of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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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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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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Molecules, 2001 A series of neat 4-(2-alkenyl) substituted 5-methyl-3-phenyl-4H-1,2,4-triazoles were thermolyzed at 320 oC producing a rearrangement products, of which the regioisomeric 1- and 2-substituted triazoles were the main products.
Per H.J. Carlsen +2 more
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BMC Chemistry, 2022 It is critical to take safety action if carcinogenic heavy metals and ammonia can be detected quickly, cheaply, and selectively in an environmental sample. As a result, compound 4a [4-(1-(2-(2,4-Dinitrophenyl)hydrazineylidene)-3-(naphthalen-2-yl)allyl)-5-
Hanan A. Mohamed +3 more
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