Summary
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1.
When 2,6-di-t-butylphenols containing electron-accepting substituents in the para-positions are brorninated with free bromine, only ortho-quinobromides are formed.
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2.
The properties of ortho-quinobromides depend on the degree of interaction of the bromine atom with electron-accepting substituents.
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3.
Under the action of acid agents ortho-quinobromides lose bromine as a cation and are converted into 2,4,6-trisubstituted phenols.
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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 12, 805–809 (1963). https://doi.org/10.1007/BF01134730
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DOI: https://doi.org/10.1007/BF01134730