| 摘要 |
1504458 Oxidative coupling of alkylphenols ICI UNITED STATES Inc 10 Nov 1976 [24 Nov 1975] 46763/76 Heading C2C A method of preparing a condensation product of an alkylphenol, or alkoxyphenol or a 1-naphthol (comprising diphenoquinones, stilbenequinones, biphenols, bisphenols, dinaphthenoquinones and binaphthols) by an oxidative coupling reaction comprises contacting an aqueous mixture of the phenol or naphthol with oxygen or molecular oxygen containing gas in the presence of sufficient amount of alkaline material to sustain pH in the range of 5-10 during the oxidative coupling reaction and in the presence of a catalyst system comprising a cupric, manganous, cobaltous or ferric metal complexes of an amine selected from an aliphatic hydroxyamine, a heterocyclic hydroxyamine, a heterocyclic polyamine or an aliphatic diamine. The reaction is preferably carried out in the presence of a surfactant. The examples describe the preparation of alkyl- and alkoxy-substituted biphenols, bisphenols, binaphthols, diphenoquinones and dinaphthoquinones.
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