| 摘要 |
PROBLEM TO BE SOLVED: To industrially advantageously manufacture a 4-alkoxy-4'-hydroxydiphenyl sulfone of high purity in a high yield. SOLUTION: Phenol and a sulfonating agent or phenolsulfonic acid are subjected to dehydration in a solvent to give 4,4'-Dihydroxydiphenyl sulfone in a liquid-containing state, which is reacted with an alkyl halide in the presence of an alkali. Preferably, 4,4'-dihydroxydiphenyl sulfone in the liquid-containing state is a suspension or a wet solid. Preferably, the alkyl halide is an isopropyl halide. COPYRIGHT: (C)2004,JPO
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