Method for preparing 4-hydroxy-3-phenylbenzoic acid
4-Hydroxy-3-phenylbenzoic acid is prepared by carbonation of a 2-phenylphenol alkali metal salt in the presence of a liquid N,N-dialkylcarboxamide such as dimethylformamide. Carbonation may be effected at atmospheric pressure or at superatmospheric pressures.
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(2008/06/13)
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