Results 201 to 210 of about 26,240 (223)

Synthesis of Selenosemicarbazides and 1,2,4‐Triazoles.

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hideharu Ishihara, Yusuke Yamamura, Mamoru Koketsu   +2 more
openaire   +3 more sources

Synthesis of 3,4,5-Trisubstituted-1,2,4-triazoles

Chemical Reviews, 2010
International ...
Moulin, Aline, Bibian, Mathieu, Blayo, Anne-Laure, El Habnouni, Sarah, Martinez, Jean, Fehrentz, Jean-Alain   +5 more
openaire   +4 more sources

Structure and IR spectroscopic properties of complexes of 1,2,4-triazole and 3-amino-1,2,4-triazole with dinitrogen isolated in solid argon

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2023
Complexes of 1,2,4-triazole (TR) and 3-amino-1,2,4-triazole (AT) with N2 were studied computationally employing MP2 and B3LYPD3 methods and experimentally by FTIR matrix isolation technique. The results show that both triazoles interact specifically with dinitrogen in several different ways.
K. Mucha, M. Pagacz-Kostrzewa, J. Krupa, M. Wierzejewska   +3 more
openaire   +2 more sources

ChemInform Abstract: SYNTHESIS AND ANTIVIRAL ACTIVITY OF 1,2,4‐TRIAZOLE‐3‐THIOCARBOXAMIDE AND 1,2,4‐TRIAZOLE‐3‐CARBOXAMIDINE RIBONUCLEOSIDES

Chemischer Informationsdienst, 1973
Abstract1‐β‐D‐Ribofuranosyl‐1,2,4‐triazol‐3‐carbonsäureamid (IVa) besitzt antivirale Aktivität. Deshalb werden (IVa) und ähnliche Verbindungen hergestellt, indem zunächst durch Kondensation zwischen dem Nitril (I) und dem Zuckeracetat (II) das Kondensat (III) hergestellt wird.
Joseph T. Witkowski, Robert W. Sidwell, Roland K. Robins, Gyaneshwar P. Khare   +3 more
openaire   +4 more sources

Regiospecific Synthesis of 1-Substituted 1,2,4-Triazoles by Reaction of 1,2,4-Triazole with Aldehydes

Chemistry Letters, 1990
Abstract The reactions of 1,2,4-triazole with aldehydes and various acid chlorides provide a convenient, regiospecific route to 1-substituted 1,2,4-triazoles.
I. J. Ellison, Michael G. Hutchings, Keith Smith, D. M. James, Mark E. W. Hammond   +4 more
openaire   +3 more sources

Annulation‐Induced Hidden Reactivity of the 1,2,4‐Triazole Backbone

Angewandte Chemie International Edition, 2023
AbstractTriazoles are an important class of compounds with widespread applications. Functionalization of the triazole backbone is thus of significant interest. In comparison to 1,2,3‐triazoles, C−H activation‐functionalization of the congeners 1,2,4‐triazoles is surprisingly underdeveloped.
Pirudhan Karak, P. A. Sreelakshmi, Barsha Chakraborty, Manisha Pal, Bitasik Khatua, Apurba Lal Koner, Joyanta Choudhury   +6 more
openaire   +2 more sources

Syntheses of substituted‐1,2,4‐triazoles

Journal of Heterocyclic Chemistry, 1992
AbstractStarting from the readily available 3‐phenylpropionitrile, 3‐(or 5‐)(2‐phenethyl)‐1,2,4‐triazole3was prepared. Reaction of compounds3with diazomethane afforded 1‐methyl‐3‐(2‐phenethyl)‐1,2,4‐triazole(4)and 1‐methyl‐5‐(2‐phenethyl)‐1,2,4‐triazole(5). Reaction of compound3with methanesulfonyl chloride, benzenesulfonyl chloride orp‐toluenesulfonyl
N. Reghabi, F. Naghashian, Abbas Shafiee
openaire   +3 more sources

1,2,4-Triazoles

2008
This chapter provides a critical update on developments in the chemistry of 1,2,4-triazoles over the last decade. 1,2,4-Triazoles have remained the topic of much research, primarily due to their ubiquitous presence in many pharmaceutical agents and, more recently, in other functional materials with uses in engineering as corrosion inhibitors and in ...
N. Jennings, Anthony D.M. Curtis
openaire   +2 more sources

ChemInform Abstract: A Novel Route to 1,2,4‐Triazoles.

ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Kumar Ranjan Bhushan, Bhavesh Dave, Mazaahir Kidwai, Preeti Misra   +3 more
openaire   +3 more sources

1,2,4-Triazole

2006
[288-88-0] C2H3N3 (MW 69.08) InChI = 1S/C2H3N3/c1-3-2-5-4-1/h1-2H,(H,3,4,5) InChIKey = NSPMIYGKQJPBQR-UHFFFAOYSA-N (transacylating agent used for ester and amide synthesis, especially in peptide synthesis; cyclization reactions; oligonucleotide synthesis) Physical Data: mp 120–121 °C; bp 260 °C (dec above 187 °C); fp 140 
Christopher S. Siedem, Jean-Claude Gesquiere   +1 more
openaire   +2 more sources