Results 111 to 120 of about 19,712 (214)

An Achiral Tetradentate Cis‐α‐Coordinating NCCN Ligand Gives Rise to a Configurationally Stable Chiral‐at‐Iron Complex for Enantioselective Catalysis

Chemistry – A European Journal, Volume 32, Issue 3, 16 January 2026.
The design and synthesis of a linear tetradentate NCCN ligand incorporating two 1,2,3‐triazolin‐5‐ylidene mesoionic carbene donors, and its application to asymmetric iron catalysis is reported. This work represents the first example of an iron complex derived from a cis‐α‐coordinating tetradentate NCCN ligand, and notably, the first chiral iron ...
Lukas Hinterlang, Nemrud Demirel, Sergei I. Ivlev, Eric Meggers   +3 more
wiley   +1 more source

A Comparative Study of Molybdenum Carbonyl and Oxomolybdenum Derivatives Bearing 1,2,3-Triazole or 1,2,4-Triazoles in Catalytic Olefin Epoxidation

Molecules, 2018
The molybdenum(0)-carbonyl-triazole complexes [Mo(CO)3(L)3] [L = 1,2,3-triazole (1,2,3-trz) or 1,2,4-triazole (1,2,4-trz)] have been prepared and examined as precursors to molybdenum(VI) oxide catalysts for the epoxidation of cis-cyclooctene. Reaction of
Lucie S. Nogueira, Patrícia Neves, Ana C. Gomes, Tatiana A. Amarante, Filipe A. Almeida Paz, Anabela A. Valente, Isabel S. Gonçalves, Martyn Pillinger   +7 more
doaj   +1 more source

Ruthenium-catalyzed azide alkyne cycloaddition reaction: scope, mechanism and applications [PDF]

, 2016
The ruthenium-catalyzed azide alkyne cycloaddition (RuAAC) affords 1,5-disubstituted 1,2,3-triazoles in one step and complements the more established copper-catalyzed reaction providing the 1,4-isomer.
Akimova G., Akimova G., Akimova G., Anna Said Stålsmeden, Bader R. F. W., Chandrasekaran S., Das R., Fan W.-Q., Fokin V. V., Gruchlik A., Huisgen R., Johan R. Johansson, Keicher T., Levin J. I., Murahashi S.-I., Neumajer G., Nina Kann, Palaniraja J., Parsons J. G., Schilling C., Tamás Beke-Somfai, Trabocchi A., Yubo J., Zhou Y. B.   +23 more
core   +2 more sources

Synthesis and Cytotoxic Evaluation of 1H-1,2,3-Triazol-1-ylmethyl-2,3-dihydronaphtho[1,2-b]furan-4,5-diones

Anais da Academia Brasileira de Ciências, 2018
The 1,2-naphthoquinone compound was previously considered active against solid tumors. Moreover, glycosidase inhibitors such as 1,2,3-1H triazoles has been pointed out as efficient compounds in anticancer activity studies.
INGRID C. CHIPOLINE, EVELYNE ALVES, PAOLA BRANCO, LETICIA V. COSTA-LOTUFO, VITOR F. FERREIRA, FERNANDO C. DA SILVA   +5 more
doaj   +1 more source

Amido‐Triazole Complexes, “Normal” Triazole‐Based Imines and Metallo‐Mesoionic Imines

ChemistryEurope
Mesoionic compounds are hugely popular in fields such as organic chemistry, organometallic chemistry and homogeneous catalysis. A new sub‐class are the mesoionic imines (MIIs).
M. Sc. Richard Rudolf, Prof. Dr. Biprajit Sarkar   +1 more
doaj   +1 more source

Synthesis of N1 and N2 coumarin substituted 1,​2,​3-​triazole isomers via click chemistry approach [PDF]

, 2016
The synthesis of N1 and N2 coumarin substituted 1,​2,​3-​triazole isomers from terminal alkynes, sodium azide, and 4-​bromomethylcoumarins in the presence of triethylamine as a base and CuI as a catalyst in good yield were reported. The mol.
Chandra, ., Mahendra Madegowda, ., Shamala Devadas, ., Shivashankar Kalegowda, .   +3 more
core   +1 more source

Towards Water Soluble Mitochondria-Targeting Theranostic Osmium(II) Triazole-Based Complexes [PDF]

, 2016
The complex [Os(btzpy)2][PF6]2 (1, btzpy = 2,6-bis(1-phenyl-1,2,3-triazol-4-yl)pyridine) has been prepared and characterised. Complex 1 exhibits phosphorescence (λem = 595 nm, τ = 937 ns, φem = 9.3% in degassed acetonitrile) in contrast to its known ...
Baggaley, Balzani, Crowley, Elliott, Helen Bryant, Julia Weinstein, Kumaresan, Luke McKenzie, Paul Elliott, Paul Scattergood, Salem Omar   +10 more
core   +3 more sources

Features of the behavior of 4-amino-5-carboxamido-1,2,3-triazole in multicomponent heterocyclizations with carbonyl compounds

Beilstein Journal of Organic Chemistry, 2012
Multicomponent reactions involving polyfunctional 4-amino-5-carboxamido-1,2,3-triazole and cyclic carbonyl-containing CH-acids were studied under conventional thermal heating, microwave and ultrasonic irradiation.
Eugene S. Gladkov, Katerina A. Gura, Svetlana M. Sirko, Sergey M. Desenko, Ulrich Groth, Valentin A. Chebanov   +5 more
doaj   +1 more source

Synthesis of Functionalized 1H-Imidazoles via Denitrogenative Transformation of 5-Amino-1,2,3-Triazoles

Molecules
An efficient access to novel 2-substituted 1H-imidazole derivatives was developed based on acid-mediated denitrogenative transformation of 5-amino-1,2,3-triazole derivatives available through dipolar azide−nitrile cycloaddition (DCR).
Pavel S. Gribanov, Anna N. Philippova, Alexander F. Smol’yakov, Diana N. Tukhvatullina, Viktoria A. Vlasova, Maxim A. Topchiy, Andrey F. Asachenko, Sergey N. Osipov   +7 more
doaj   +1 more source

Biomolekuláris felismerésre képes makrociklusos receptorok szintézise = Synthesis of macrocyclic receptors capable of biomolecular recognition [PDF]

, 2013
1. Kalix-és binaftokorona éterek szintézise és alkalmazásuk 1.1. Kalix[6]arén Mitsunobu ciklizációját tanulmányoztuk 1,6-és 1,8-oktándiollal és a termékek konformációját meghatároztuk 1.2.
Bitter, István, Csókai, Viktor, Grün, Alajos   +2 more
core