Results 1 to 10 of about 18,306 (270)

Tetrazoles via Multicomponent Reactions [PDF]

open access: yesChemical Reviews, 2019
Tetrazole derivatives are a prime class of heterocycles, very important to medicinal chemistry and drug design due to not only their bioisosterism to carboxylic acid and amide moieties but also to their metabolic stability and other beneficial ...
Constantinos G Neochoritis, Alex Domling
exaly   +5 more sources

Photochemical Transformations of Tetrazole Derivatives: Applications in Organic Synthesis [PDF]

open access: yesMolecules, 2010
Tetrazoles remain a challenge to photochemists. Photolysis leads to cleavage of the tetrazolyl ring, may involve various photodegradation pathways and may produce a diversity of photoproducts, depending on the structure and conformational flexibility of ...
Luís Miguel Teodoro Frija   +2 more
doaj   +3 more sources

Ambident reactivity of enolizable 5-mercapto-1H-tetrazoles in trapping reactions with in situ-generated thiocarbonyl S-methanides derived from sterically crowded cycloaliphatic thioketones [PDF]

open access: yesBeilstein Journal of Organic Chemistry
The in situ-generated thiocarbonyl S-methanides (thiocarbonyl ylides), derived from cycloaliphatic thioketones, are efficiently trapped by enolizable 1-substitued 5-mercapto-1H-tetrazoles and formation of the corresponding N–H or S–H insertion products ...
Grzegorz Mlostoń   +5 more
doaj   +2 more sources

A novel Pd complex coated on TiFe2O4 magnetic nanoparticles as an efficient and recoverable catalyst for the synthesis of 5-substituted 1H-tetrazoles [PDF]

open access: yesScientific Reports
This study presents the synthesis of magnetic nanoparticles using commercially available precursors, including FeCl2·4H2O and C12H28O4Ti. The nanoparticles were coated with a silica layer and subsequently functionalized with 3-chloropropyltriethoxysilane
Abdulrahman A. Almehizia   +9 more
doaj   +2 more sources

Substituent Effects on EI-MS Fragmentation Patterns of 5-Allyloxy-1-aryl-tetrazoles and 4-Allyl-1-aryl-tetrazole-5-ones; Correlation with UV-Induced Fragmentation Channels

open access: yesMolecules, 2021
1,4- and 1,5-disubstituted tetrazoles possess enriched structures and versatile chemistry, representing a challenge for chemists. In the present work, we unravel the fragmentation patterns of a chemically diverse range of 5-allyloxy-1-aryl-tetrazoles and
Alina Secrieru   +2 more
doaj   +1 more source

Data on synthesis and structure–activity relationships of tetrazolato-bridged dinuclear platinum(II) complexes

open access: yesData in Brief, 2022
In this data file, the synthetic procedures for the preparation of a series of anticancer tetrazolato-bridged dinuclear platinum(II) complexes ([{cis-Pt(NH3)2}2(μ-OH)(μ-5-R-tetrazolato-N2,N3)]n+ (n = 1 or 2, tetrazolato-bridged complexes)) and of the ...
Seiji Komeda   +7 more
doaj   +1 more source

Investigation of Fe3O4@boehmite NPs as efficient and magnetically recoverable nanocatalyst in the homoselective synthesis of tetrazoles

open access: yesRSC Advances, 2022
Magnetic boehmite nanoparticles (Fe3O4@boehmite NPs) were synthesized from a hybrid of boehmite and Fe3O4 nanoparticles. At first, boehmite nanoparticles (aluminum oxide hydroxide) were prepared via a simple procedure in water using commercially ...
Parisa Moradi
semanticscholar   +1 more source

Photochemistry of 1-Phenyl-4-Allyl-Tetrazol-5-One: A Theoretical Study Contribution towards Mechanism Elucidation

open access: yesApplied Sciences, 2021
The photodegradation mechanism of 1-phenyl-4-allyl-tetrazol-5-one has been studied using (time-dependent) density functional theory with the M06-HF, B3LYP, and PBE0 functionals and the VDZ basis set.
Amilcar Duque-Prata   +2 more
doaj   +1 more source

Nanomaterial catalyzed green synthesis of tetrazoles and its derivatives: a review on recent advancements

open access: yesRSC Advances, 2021
Tetrazoles are indispensable nitrogen containing heterocyclic scaffolds that offer a broad spectrum of applications in various domains such as medicinal chemistry, high energy material science, biochemistry, pharmacology etc.
Suman Swami, S. Sahu, R. Shrivastava
semanticscholar   +1 more source

‘Atypical Ugi’ tetrazoles

open access: yesChemical Communications, 2020
We surprisingly found that combining the substrates of Ugi tetrazole reaction gives two different constitutional isomeric Ugi products A and B. A is the expected classical Ugi products whereas B is an isomeric product (‘atypical Ugi’).
Eman M. M. Abdelraheem   +6 more
openaire   +5 more sources

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