Results 241 to 250 of about 17,991 (268)

Tetrazoles

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

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

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

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

Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles.

Angewandte Chemie, 2016
The reaction of allyl ethyl carbonates with isocyanides in the presence of a catalytic amount of Pd(OAc)2 provided ketenimines through β-hydride elimination of the allyl imidoylpalladium intermediates.
Guanyinsheng Qiu, Mathias Mamboury, Qian Wang, Jieping Zhu   +3 more
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

Medicinal chemistry of tetrazoles

Russian Chemical Bulletin, 2012
AbstractReview: biological and medicinal activity of tetrazole derivatives and tetrazole containing compounds; 124 refs.
E. A. Popova, Vladimir A. Ostrovskii, R. E. Trifonov   +2 more
openaire   +3 more sources

Photo-induced coupling reactions of tetrazoles with carboxylic acids in aqueous solution: application in protein labelling.

Chemical Communications, 2016
The photo-induced reactions of diaryltetrazoles with carboxylic acids in aqueous solution were investigated. Besides measuring the apparent second-order rate constant and evaluating the functional group compatibility of these reactions, we further ...
Shan Zhao, J. Dai, Mo Hu, Chang Liu, Rong Meng, Xiaoyun Liu, Chu Wang, T. Luo   +7 more
semanticscholar   +1 more source

Magnetically separable Fe3O4@chitin as an eco-friendly nanocatalyst with high efficiency for green synthesis of 5-substituted-1H-tetrazoles under solvent-free conditions

, 2016
The present study describes an efficient, eco-friendly and simple method for the synthesis of 5-substituted-1H-tetrazoles catalyzed by magnetite–chitin (Fe3O4@chitin) as a green and recyclable catalyst.
M. Zarghani, B. Akhlaghinia
semanticscholar   +1 more source

Tetrazoles as anticancer agents: A review on synthetic strategies, mechanism of action and SAR studies.

Bioorganic & Medicinal Chemistry, 2020
Neha Dhiman, K. Kaur, Vikas Jaitak
semanticscholar   +1 more source