Synthesis of 1-substituted tetrazoles by heterocyclization of primary amines, orthoformic ester, and sodium azide

Гапоник, П. Н.; Karavai, V. P.; Grigor’ev, Yu. V.

doi:10.1007/bf00515224

Cited by 44 publications

(18 citation statements)

References 2 publications

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“…1-Ethyltetrazole (ettz) and 1-hexyltetrazole (htz) were prepared by literature methods. [34] The copper content was determined by complexometric titration, with the samples being mineralized in a 1:1 mixture of concentrated H 2 SO 4 and HClO 4 . Elemental analysis was performed with a Carlo-Erba analyzer.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Anisotropy of New Layered Copper(II) Bromide Complexes of 1‐Substituted Tetrazoles

et al. 2005

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Two new isostructural complexes, dibromobis(1‐ethyltetrazole)copper(II) (1) and dibromobis(1‐hexyltetrazole)copper(II) (2), have been synthesised. Each bromine atom in the crystal structure of 1 and 2 is bonded to two copper atoms to give rise to a polymeric corrugated network. The polymeric layers are distinctly separated by tetrazole ligands. Both solids exhibit a phase transition to the ferromagnetic state with Curie temperatures of 8.5 K and 8.9 K for 1 and 2, respectively, and a strong anisotropy of the magnetic susceptibility below the ordering temperature. The easy magnetisation axis lies along the monoclinic axis, and the hard magnetisation axis is orthogonal to the polymeric layers. Effective anisotropy fields were estimated as (720–3020 Oe). (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)

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Section: Methodsmentioning

confidence: 99%

Magnetic Anisotropy of New Layered Copper(II) Bromide Complexes of 1‐Substituted Tetrazoles

et al. 2005

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“…The mechanism of cyclization process of the related reaction described in Scheme according to the literature ,. The first stage of the mechanism involves the protonation of triethyl orthoformate CH(OEt) 3 (under acidic conditions) and formation of intermediate (I) and ethanol, which simplifies the subsequent nucleophilic substitutions by amino anthraquinones.…”

Section: Resultsmentioning

confidence: 99%

Three‐Component Synthesis of Tetrazolo Anthraquinone as a Representation of a New Heterocyclic System

2019

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A new series of (1H‐tetrazole‐1‐yl) anthracene‐9,10‐dione was proposed with the cyclisation amino‐anthraquinones, triethyl orthoformate and sodium azide in the presence of catalytic amount of p‐Toluenesulfonic acid (p‐TSA) in acetic acid at ambient temperature. Desired products were synthesized in good yields. Chemical structures containing the tetrazolo anthraquinone framework were identified using FT‐IR, 1H and 13C NMR spectroscopy, Mass spectra, elementary analysis, and melting points. Additionally, DNA‐binding activities of these compounds were studied using UV‐Vis electron‐absorption spectra.

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“…Three-component reactions of primary amines 55 of various origin, including aminoazoles, orthoformic ester 313 and sodium azide leading to 1-substituted tetrazoles 315 (Figure 27 ) was thoroughly studied by Gaponik group and their followers (Gaponik et al, 1985 , 1990 ; Voitekhovich et al, 2005 , 2013 ). One of the latest and most complete reviews was presented in Grigoriev et al ( 2017 ).…”

Section: Main Partmentioning

confidence: 99%

Aminoazole-Based Diversity-Oriented Synthesis of Heterocycles

et al. 2018

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Synthesis of 1-substituted tetrazoles by heterocyclization of primary amines, orthoformic ester, and sodium azide

Cited by 44 publications

References 2 publications

Magnetic Anisotropy of New Layered Copper(II) Bromide Complexes of 1‐Substituted Tetrazoles

Magnetic Anisotropy of New Layered Copper(II) Bromide Complexes of 1‐Substituted Tetrazoles

Three‐Component Synthesis of Tetrazolo Anthraquinone as a Representation of a New Heterocyclic System

Aminoazole-Based Diversity-Oriented Synthesis of Heterocycles

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