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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2011, Volume 62, Issue 5,





Simona LUPSOR, Isabela TArcomnicu, Florin Aonofriesei, Mircea IOVU
Microwave-Assisted Synthesis of 1-Hydroxymethylazoles

Abstract:

In order to study their antimicrobial activity, series of 1-hydroxymethylazoles were synthesised by condensation reaction of azoles (pyrazole, imidazole, 3,5-dimethylpyrazole, 2-methylimidazole and benzimidazole) with paraformaldehyde. The reactions were carried out under microwave irradiation conditions using tetrahydrofurane (THF) or dimethyl sulfoxide (DMSO) as solvents. Obtaining hemiaminals of azoles using the microwaves assisted procedure has noticeable advantages compared to classical methods: yield increase, substantial reduction of reaction time, solvents consumption and waste minimization. All obtained hemiaminals were characterized by melting points, absorption spectra (FT-IR, 1H-NMR and mass spectra (MS) while the purity was established by HPLC. Keywords: hemiaminals of azoles, 1-hydroxymethylazole, microwave assisted synthesis, picrates of azoles


Issue: 2011, Volume 62, Issue 5
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