Results 191 to 200 of about 12,017 (229)

Mass spectra of 1,2,3-triazoles

Journal of the Chemical Society, Perkin Transactions 1, 1979
The mass spectra of substituted 1,2,3-triazoles [RTR′, (1)](R′= H, CO2X, COR″, pyrazolyl, or isoxazolyl) are discussed. For a wide variety of structural types, P+ is always strong and [P+ 1]+ is often of significant intensity. Subsequent breakdown patterns are strongly dependent on the substituents R and R′.
Sidney I. Miller, Ruey-Rong Lii, Yoshinari Tanaka   +2 more
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A vibrational assignment for 1,2,3-triazole

Journal of the Chemical Society B: Physical Organic, 1969
I.r. spectra of 1,2,3-triazole in the vapour and liquid states and in solution are reported and discussed. From these, and by comparison with the spectra of other simple five-membered heterocycles, vibrational assignments are proposed. The i.r. spectra is satisfactorily interpreted in terms of an asymmetric structure.
E. Borello, A. Zecchina, E. Guglielminotti   +2 more
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1,2,3‐Triazoles in Peptidomimetic Chemistry

European Journal of Organic Chemistry, 2011
AbstractThe ability to synthesise small peptidomimetics that mimic the secondary structure of proteins is an ever expanding area of research directed at sourcing new medicinal agents and biological probes. A significant current challenge is to mimic protein epitopes under physiological conditions using small peptidomimetics that are easy to prepare ...
Pedersen, D., Abell, A.
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Azolyl-substituted 1,2,3-triazoles

Russian Journal of Organic Chemistry, 2016
Huisgen reaction of (E)-1,5-diarylpent-2-en-4-yn-1-ones and (E)-1,5-diarylpent-1-en-4-yn-3-ones afforded 1-aryl-3-(5-aryl-1H-1,2,3-triazol-4-yl)prop-2-en-1-ones and 3-aryl-1-(5-aryl-1H-1,2,3-triazol-4-yl)-prop-2-en-1-ones, respectively. (E)-1-Aryl-3-(5-phenyl-1H-1,2,3-triazol-4-yl)prop-2-en-1-ones reacted with hydrazine hydrate and phenylhydrazine to ...
A. A. Golovanov, I. S. Odin, V. V. Bekin, A. V. Vologzhanina, I. S. Bushmarinov, S. S. Zlotskii, Yu. L. Gerasimov, P. P. Purygin   +7 more
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ChemInform Abstract: 1,2,3‐TRIAZOLES

Chemischer Informationsdienst, 1974
AbstractIn einer Zusammenfassung wird die Synthese der verschiedenen 1,2,3‐Triazole aus Aziden mit Acetylenen oder aktivierten Methylenverbindungen und ausgehend von α‐Diketonen oder α‐Diketonderivaten er1äutert,und die Struktur, die physikalischen Eigenschaften sowie die chemischen Reaktionsweisen der Triazole bei Substitutionsreaktionen, Umwandlung ...
T. L. GILCHRIST, G. E. GYMER
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1,2,3-Triazoles

2022
Nuno M.M. Moura, Augusto C. Tomé
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Synthesis of 2H-1,2,3-Triazoles

2014
This chapter gives an overview of methods for the synthesis of NH- and N(2)-substituted 1,2,3-triazoles, their advantages, lacks, scope, and limitations. Moreover, it will give some insights on the reaction mechanisms and will explain how different conditions and structure substrates can influence the direction for reactions.
Nataliya Belskaya, Julia Subbotina, Svetlana Lesogorova   +2 more
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Pharmacological Significance of 1,2,3-Triazoles

Click chemistry is not a single specific reaction, but was meant to mimic nature, which also generates substances by joining small modular units. The 1,3-dipolar azide, alkyne cycloaddition (CuAAC) reaction catalyzed by copper, as nearly quantitative and easy to execute has emerged as the leading example of “click chemistry”.
Mubarak Hanif Shaikh, Amol A. Nagargoje, Dattatraya N. Pansare, Bapurao B. Shingate   +3 more
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α‐Diazo Sulfonium Triflates: Synthesis, Structure, and Application to the Synthesis of 1‐(Dialkylamino)‐1,2,3‐triazoles

Angewandte Chemie - International Edition, 2021
Xiangdong Li, Manuel Alcarazo
exaly  

1,2,3-Triazoles

1996
Wei-Qiang Fan, Alan R. Katritzky
openaire   +1 more source