Results 231 to 240 of about 18,166 (271)

Tetrazole Analogues of Ibuprofen and Flurbiprofen

Archiv der Pharmazie, 1983
AbstractThe pharmacological properties of the tetrazole analogues of ibuprofen and flurbiprofen are reported.
Valenti P, Rampa A, Fabbri G, GIUSTI, PIETRO, CIMA, LORENZO   +4 more
openaire   +5 more sources

An efficient Cu/functionalized graphene oxide catalyst for synthesis of 5-substituted 1H-tetrazoles

Chemické zvesti, 2021
P. A. Kulkarni, A. Satpati, Maiyalagan Thandavarayan, S. Shendage   +3 more
semanticscholar   +1 more source

Fe3O4–adenine–Zn: a novel, green, and magnetically recoverable catalyst for the synthesis of 5-substituted tetrazoles and oxidation of sulfur containing compounds

, 2017
Zinc(II)–adenine complexes were functionalized on Fe3O4 nanoparticles via a versatile, simple, and inexpensive procedure. This nanostructural material was characterized by FT-IR spectroscopy, XRD, ICP-OES, TGA, EDS, and SEM techniques.
Taiebeh Tamoradi, A. Ghorbani‐Choghamarani, M. Ghadermazi   +2 more
semanticscholar   +1 more source

Thermal decomposition of tetrazole

Thermochimica Acta, 1990
Abstract This article elucidates the kinetic scheme of the process of tetrazole thermolysis and ascertains the results of the kinetic investigations described in Part I (Thermochim. Acta, 145 (1989) 195). Based on the processing of a series of DSC curves, an overall scheme for tetrazole thermolysis is proposed which represents two parallel processes,
V.A. Lyutsko, Sergey Vyazovkin, Anatoly I. Lesnikovich   +2 more
openaire   +2 more sources

Electrochemical synthesis of tetrazoles via metal- and oxidant-free [3 + 2] cycloaddition of azides with hydrazones

, 2018
An unprecedented electrochemical [3 + 2] cycloaddition reaction for the synthesis of valuable tetrazoles was developed. Readily available azides and hydrazones were used as the starting materials under simple metal- and oxidant-free reaction conditions ...
Zenghui Ye, Feng Wang, Yong Li, Fengzhi Zhang   +3 more
semanticscholar   +1 more source

Mechanism of the monomolecular thermal decomposition of tetrazole and 5-substituted tetrazoles

Russian Chemical Bulletin, 1996
The kinetic parameters of the thermal decomposition of tetrazole and 5-alkyl- and 5-aryl-substituted tetrazoles in melts of neat substances and in nitrobenzene solutions have been determined using the manometric method. The limiting stages of the monomolecular decomposition, which determine the observed rate of nitrogen formation, include the fast ...
V. S. Poplavsky, V. A. Ostrovskii, V. G. Prokudin   +2 more
openaire   +2 more sources

Preparation of Fe3O4@5,10-dihydropyrido[2,3-b]quinoxaline-7,8-diol copper complex: A capable nanocatalyst for the green synthesis of 1-substituted 1H-tetrazoles

, 2018
Fe3O4 magnetic nanoparticles functionalized with 5,10-dihydropyrido[2,3-b]quinoxaline-7,8-diol were synthesized as was their complex with copper as a novel nanomagnetic iron oxide catalyst via a simple and green method, and characterized using various ...
D. Habibi, Narges Pakravan, A. Arabi, Zahra Kaboudvand   +3 more
semanticscholar   +1 more source

Tetrazoles

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 2021
V. Ostrovskii, E. A. Popova, R. Trifonov
semanticscholar   +1 more source

Magnetic chitosan-copper nanocomposite: A plant assembled catalyst for the synthesis of amino- and N-sulfonyl tetrazoles in eco-friendly media.

Carbohydrate Polymers, 2020
Narjes Motahharifar, M. Nasrollahzadeh, A. Taheri‐Kafrani, R. Varma, M. Shokouhimehr   +4 more
semanticscholar   +1 more source

Visible-light driven regioselective synthesis of 1H-tetrazoles from aldehydes through isocyanide-based [3 + 2] cycloaddition

, 2018
A novel and green Co@g-C3N4 catalyzed visible light driven direct regioselective synthesis of 1H-tetrazoles directly from various aldehydes and sodium azide is reported.
F. Verma, A. Sahu, P. Singh, Ankita Rai, Manorama Singh, V. Rai   +5 more
semanticscholar   +1 more source