Results 11 to 20 of about 38,452 (298)
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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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 +7 more
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, 2022 NH-1,2,3-Triazoles undergo a ring cleavage in reactions with fluorinated acid anhydrides (trifluoroacetic, difluoroacetic, chlorodifluoroacetic, and pentafluoropropionic anhydrides) by nitrogen acylation and acid-mediated triazole ring opening ...
Petr Beier (1748218) +3 more
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Catalytic Asymmetric Synthesis of Atropisomeric N‑Aryl 1,2,4-Triazoles
, 2023 The atroposelective synthesis of N-aryl 1,2,4-triazoles was developed. A cyclodehydration reaction was rendered asymmetric with the use of a chiral phosphoric acid catalyst to afford atropisomeric N-aryl 1,2,4-triazoles in up to 91:9 er ...
Sooyun Choi (13103816) +7 more
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Synthesis and antibacterial evaluation of sulfonamide bridged disubstituted 1,2,3-triazoles
, 2022 In the present study, a series of sulfonamide bridged 1,4-disubstituted 1,2,3-triazoles have been synthesized in good yield via click reaction between sulfonamide linked terminal alkynes and in situ prepared 2/3/4-azidobenzenesulfonamides.
C. P. Kaushik (7494545) +1 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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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
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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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, 2022 The straightforward synthesis of copper(I) salicylate from salicylic acid and copper(I) oxide is described for the first time and its identity confirmed by XPS and XRDP techniques.
Uvaldo Hernández-Balderas (12697926) +6 more
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Synthesis Of 2-Benzamidomethyl-5-Substituted Amino-1,3,4-Thiadiazoles-2,5-Disubstituted 1,3,4-Oxadiazole and 4,5-Disubstituted 1,2,4-Triazole-3-Thiol [PDF]
مجلة التربية والعلم, 2012 In this paper the synthesis of some substituted 1,3,4-oxadiazoles , 1,3,4-thiadiazoles and 1,2,4-triazoles starting from amino acid and benzoyl chloride is reported.
K. M. Daoud, A. N. Ali, A. A. Ahmed
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