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A convenient approach for the electrochemical bromination and iodination of pyrazoles

A convenient approach for the electrochemical bromination and iodination of pyrazoles AbstractElectrochemical bromination and iodination of some pyrazoles were investigated under constant-current (CC) electrolysis in an undivided electrochemical cell. Anodic oxidation of KX salt produces X2 in-situ which can be consumed as an expedient electrophile in pyrazoles aromatic electrophilic substitution reactions or may participate in an X–N coupling reaction with electrochemically catalyzed pyrazolesox to form the halogenated pyrazoles. All reactions proceeded without the need to use any hazardous reagents or catalysts. The reaction conditions are mild and environmentally compatible. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Zeitschrift für Naturforschung B de Gruyter

A convenient approach for the electrochemical bromination and iodination of pyrazoles

Zeitschrift für Naturforschung B , Volume 77 (1): 6 – Jan 27, 2022

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Publisher
de Gruyter
Copyright
© 2021 Walter de Gruyter GmbH, Berlin/Boston
ISSN
0932-0776
eISSN
1865-7117
DOI
10.1515/znb-2021-0148
Publisher site
See Article on Publisher Site

Abstract

AbstractElectrochemical bromination and iodination of some pyrazoles were investigated under constant-current (CC) electrolysis in an undivided electrochemical cell. Anodic oxidation of KX salt produces X2 in-situ which can be consumed as an expedient electrophile in pyrazoles aromatic electrophilic substitution reactions or may participate in an X–N coupling reaction with electrochemically catalyzed pyrazolesox to form the halogenated pyrazoles. All reactions proceeded without the need to use any hazardous reagents or catalysts. The reaction conditions are mild and environmentally compatible.

Journal

Zeitschrift für Naturforschung Bde Gruyter

Published: Jan 27, 2022

Keywords: 4-bromopyrazoles; 4-iodopyrazoles; constant-current (CC) coulometry; electrochemically catalyzed; electrosynthesis; one-compartment cell

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