| 摘要 |
1529653 Preparation of phenols MITSUI PETROCHEMICAL INDUSTRIES Ltd 3 May 1977 [7 May 1976 (2)] 18566/77 Heading C2C A process for producing phenols comprises replacing by a hydroxyl group the isopropyl group of an aromatic hydrocarbon ring substituted by an isopropyl group in one step in the liquid phase using molecular oxygen or a gas containing molecular oxygen in the presence or absence of a solvent, and in the presence of an aromatic mercaptan having an acid dissociation constant (pKa) of less than 7À8 the preferred mercaptan is a phenyl mercaptan having 1 to 3 substituents selected from cyano, acetyl, nitro, halogen, halo-C 1-4 alkyl, C 1-4 alkylsulphonyl and sulphonic acid groups.
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