Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Anodically-Generated Br–Cl Composite Halogenating Reagents
Kouta FukuiTsutomu Nonaka
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1992 Volume 65 Issue 4 Pages 943-948

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Abstract

The halogenating power of Br–Cl composite species (termed “BC-reagent” in this article) generated anodically from mixtures of Br and Cl in CH2Cl2 was examined in an ex-cell manner toward some organic compounds. The BC-reagent brominated methoxybenzenes, and the brominating power could be precisely controlled by means of the amount of electricity charged and by varying the ratio of Cl/Br. The power of the reagent was less controllable during the bromination of aniline. The reaction of olefins with the BC-reagent led to dibromination and bromochlorination, the product-selectivity of which could be also controlled. The theoretically calculated chemical composition of the BC-reagent agreed fairly well with the experimentally confirmed value in some cases.

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© 1992 The Chemical Society of Japan
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