Results 21 to 30 of about 37,042 (298)
Журнал Белорусского государственного университета: Химия, 2020 The target for antibacterial action of 1,4-di- and 1,4,5-trisubstituted 1H-1,2,3-triazoles against E. coli ATCC 25922 and S. aureus ATCC 6538 was proposed.
Cyril M. Verbilo +4 more
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4,5-Bis(arylethynyl)-1,2,3-triazoles—A New Class of Fluorescent Labels: Synthesis and Applications
Molecules, 2022 Cu-catalyzed 1,3-dipolar cycloaddition of ethyl 2-azidoacetate to iodobuta-1,3-diynes and subsequent Sonogashira cross-coupling were used to synthesize a large series of new triazole-based push–pull chromophores: 4,5-bis(arylethynyl)-1H-1,2,3-triazoles ...
Anastasia I. Govdi +7 more
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N-Acyl-1,2,3-triazoles - key intermediates in denitrogenative transformations [PDF]
, 2023 Direct N-acylation of 1,2,3-NH-triazoles aimed at obtaining elusive N-acyl-1,2,3-triazoles was investigated. A preference for the formation of thermodynamically favoured N2 isomers was established and an influence of the hard/soft character of the ...
Vladimir, Motornov +3 more
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Overview of 1,5-Selective Click Reaction of Azides with Alkynes or Their Synthetic Equivalents
Molecules, 2023 Nowadays, the click reaction of azides with alkynes has evolved rapidly and become one of the most efficient methods to synthesize 1,2,3-triazoles, which are an important class of N-containing heterocycles.
Yaqi Zhao +3 more
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Molecules, 2001 The rearrangement of 4-methyl-3,5-diaryl-4H-1,2,4-triazoles to the corresponding 1-methyl-3,5-diaryl-1H-1,2,4-triazoles showed regioselectivity comparable to that observed for the alkylation of 3,5-diaryl-1H-1,2,4-triazoles.
Per H.J. Carlsen, Odd R. Gautun
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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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Molecules, 2022 An operationally simple Ag(I)-catalyzed approach for the synthesis of isoquinoline and quinazoline fused 1,2,3-triazoles was developed by a condensation and amination cyclization cascade of amino-NH-1,2,3-triazoles with 2-alkynylbenzaldehydes involving ...
Shuitao Zhang +4 more
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Metal-Free Synthesis of 1,5-Disubstituted 1,2,3-Triazoles
, 2021 A three-component synthesis of 1,5-disubstituted 1,2,3-triazoles from α-acetyl-α-diazomethane sulfonamides, primary aliphatic amines, and aromatic aldehydes is presented.
Mikhail Krasavin +9 more
core +1 more source
Synthesis, characterization and antibacterial activity of the thioether linked 1,2,3-triazoles
, 2021 A green synthetic approach for the expedite construction of thirty six thioether linked 1,2,3-triazoles was carried out using Cellulose supported CuI nanoparticles in water.
Jyoti Sangwan (7494548) +1 more
core +1 more source
Palladium-Catalyzed C–H Arylation of 1,2,3-Triazoles
Molecules, 2016 Palladium(II) acetate, in combination with triphenylphosphine, catalyzes direct arylation of 1,4-disubstituted 1,2,3-triazoles effectively. This C–H arylation reaction provides facile access to fully substituted triazoles with well-defined regiochemistry.
Chengwei Zhang, Lin You, Chuo Chen
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