Summary
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1.
A mechanism for the formation of quinobromides is proposed.
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2.
For the formation of quinobromides the presence of proton-accepting substances is necessary.
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3.
In the bromination of 2,6-di-t-butyl-p-cresol (ionol) with free bromine in dry nonpolar solvents at 20°, 4-(bromomethyl)-2,6-di-t-butylphenol, which contains bromine in the side chain, is formed preferentially.
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The authors thank N. M. Émanuél' for constant interest in this work.
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Ershov, V.V., Volod'kin, A.A. Sterically hindered phenols. Russ Chem Bull 11, 1925–1930 (1962). https://doi.org/10.1007/BF00921348
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DOI: https://doi.org/10.1007/BF00921348