Electrochemical bromination of cyclic and acyclic enes using biphasic electrolysis
K. Kulangiappar
M. Ramaprakash
D. Vasudevan
T. Raju
10.6084/m9.figshare.1617199.v2
https://tandf.figshare.com/articles/journal_contribution/Electrochemical_Bromination_of_Cyclic_and_Acyclic_Enes_Using_Biphasic_Electrolysis/1617199
<p>A simple method of electrochemical bromination of a series of cyclic and acyclic enes (styrene and substituted styrenes, stilbene, indene, and cyclooctene) in a biphasic water–chloroform mixture mediated by bromide/bromine redox system is reported. Aqueous 25% NaBr/H<sub>2</sub>SO<sub>4</sub> is used as the electrolyte. Regio- and stereoselective dibromination of enes is achieved. Moderate to excellent yields of the product (83–98%) is obtained depending on the substrate. Electrolyte reuse has also been demonstrated successfully using HBr in the dibromination of styrene.</p>
2016-02-09 00:16:35
Biphasic media
cyclic and acyclic enes
dibromide
electrolytic oxidation
stereoselectivity