Synthesis Of 5-substituted Tetrazoles Research Articles

Synthesis of 5-Substituted Tetrazoles: Reaction of Azide Salts with Organonitriles Catalyzed by Trialkylammonium Salts in Non-polar Media

Synthesis of 5-Substituted Tetrazoles: Reaction of Azide Salts with Organonitriles Catalyzed by Trialkylammonium Salts in Non-polar Media

Synthesis and characterization of MCM-41@AMPD@Zn as a novel and recoverable mesostructured catalyst for oxidation of sulfur containing compounds and synthesis of 5-substituted tetrazoles

In this paper we report synthesis of a heterogeneous catalyst for the first time, by anchoring a zinc complex to mesoporous silica MCM-41. The structure of functionalized MCM-41 was characterized by FT-IR, XRD, SEM, TEM, TGA, ICP, EDA and BET techniques. Functionalized MCM-41 (MCM-41@AMPD@Zn) exhibits excellent catalytic activity in the oxidation of various sulfides into sulfoxides in the presence of hydrogen peroxide (H2O2) as oxidant, oxidative coupling of thiols into disulfides at room temperature and the synthesis of 5-substituted tetrazoles from sodium acid (NaN3). The heterogeneous catalyst showed good recovery and recyclability up to 8 consecutive cycles without significant loss of its catalytic activity.

Synthesis of 5-Substituted Tetrazoles from Nitriles Catalyzed by Sulfamic Acid

Tetrazoles are five-membered heterocyclic compounds1 and, though not generally found in nature2 possess interesting applications in pharmaceuticals,2 agriculture,3–5 photography6 and as components ...

Ni–S-methylisothiourea complexes supported on boehmite nanoparticles and their application in the synthesis of 5-substituted tetrazoles

Boehmite nanoparticles were immobilized with a new type of nickel complex and applied for the synthesis of 5-substituted 1H-tetrazole derivatives in PEG-400.

Tetrazoles: LVI. Synthesis of 5-substituted tetrazoles under microwave activation in the presence of heterogeneous catalyst (zinc oxide)

Reactions of aromatic and heteroaromatic nitriles with sodium azide in the presence of zinc oxide under the conditions of microwave activation provide 5-aryl(hetaryl)tetrazoles in high yields.

Tetrazoles: LI. Synthesis of 5-substituted tetrazoles under microwave activation

Reaction of nitriles with sodium azide in the presence of ZnCl2 under microwave activation (MWA) leads to the formation of 5-tetrazoles in high yields; therewith the process is 2–3 times shorter than the inactivated reaction.

Novel Synthesis of 5-Substituted Tetrazoles from Nitriles

Novel Synthesis of 5-Substituted Tetrazoles from Nitriles

Synthesis of 5-substituted tetrazoles based on the disodium salt of azotetrazole. investigation of the azotetrazole-2-(tetrazolyl-5)-6-imino-1,2,3,4-pentazine mesoion tautomerism

For the example of a salt of azotetrazole, for the first time we have investigated the azotetrazole-1,2,3,4,5-pentazine tautomerism. Upon treatment of an excess of the disodium salt of azotetrazole with dilute sulfuric acid, we isolated 5-substituted tetrazole, which on the basis of analysis data (with introduction of the 15N isotope into the compound) and study of the chemical properties with sufficiently high probability of assigning the structure of the first representative of the previously unknown class of compounds of the pentazine mesoion: the tetrahydrate of the sodium salt of the 2-(tetrazolyl-5)-6-imino-1,2,3,4,5-pentazine mesoion. We synthesized the dehydrate of the sodium and silver salts of 5-azodiazomethanotetrazole; using derivatography, we have studied the properties of the isolated compounds.