Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines

An electrochemically induced synthesis of imidazoles from vinyl azides and benzyl amines was developed. A wide range of imidazoles were obtained, with yields of 30 to 64%. The discovered transformation is a multistep process whose main steps include the generation of electrophilic iodine species, 2&...

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Main Authors: Vera A. Vil’, Sergei S. Grishin, Alexander O. Terent’ev
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/22/7721
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author Vera A. Vil’
Sergei S. Grishin
Alexander O. Terent’ev
author_facet Vera A. Vil’
Sergei S. Grishin
Alexander O. Terent’ev
author_sort Vera A. Vil’
collection DOAJ
description An electrochemically induced synthesis of imidazoles from vinyl azides and benzyl amines was developed. A wide range of imidazoles were obtained, with yields of 30 to 64%. The discovered transformation is a multistep process whose main steps include the generation of electrophilic iodine species, 2<i>H</i>-azirine formation from the vinyl azide, followed by its reactions with benzyl amine and with imine generated from benzyl amine. The cyclization and aromatization of the obtained intermediate lead to the target imidazole. The synthesis proceeds under constant current conditions in an undivided cell. Despite possible cathodic reduction of various unsaturated intermediates with C=N bonds, the efficient electrochemically induced synthesis of imidazoles was carried out.
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spelling doaj.art-4c01cea271394088aac1a7c509e313e42023-11-24T09:20:01ZengMDPI AGMolecules1420-30492022-11-012722772110.3390/molecules27227721Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl AminesVera A. Vil’0Sergei S. Grishin1Alexander O. Terent’ev2N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, RussiaN. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, RussiaN. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, Moscow 119991, RussiaAn electrochemically induced synthesis of imidazoles from vinyl azides and benzyl amines was developed. A wide range of imidazoles were obtained, with yields of 30 to 64%. The discovered transformation is a multistep process whose main steps include the generation of electrophilic iodine species, 2<i>H</i>-azirine formation from the vinyl azide, followed by its reactions with benzyl amine and with imine generated from benzyl amine. The cyclization and aromatization of the obtained intermediate lead to the target imidazole. The synthesis proceeds under constant current conditions in an undivided cell. Despite possible cathodic reduction of various unsaturated intermediates with C=N bonds, the efficient electrochemically induced synthesis of imidazoles was carried out.https://www.mdpi.com/1420-3049/27/22/7721electrochemistryimidazolesvinyl azides
spellingShingle Vera A. Vil’
Sergei S. Grishin
Alexander O. Terent’ev
Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
Molecules
electrochemistry
imidazoles
vinyl azides
title Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
title_full Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
title_fullStr Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
title_full_unstemmed Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
title_short Electrochemically Induced Synthesis of Imidazoles from Vinyl Azides and Benzyl Amines
title_sort electrochemically induced synthesis of imidazoles from vinyl azides and benzyl amines
topic electrochemistry
imidazoles
vinyl azides
url https://www.mdpi.com/1420-3049/27/22/7721
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