发明名称 Process for the preparation of phenyl 1-hydroxynaphthalene- 2-carboxylate
摘要 A process for the preparation of phenyl 1-hydroxynaphthalene- 2-carboxylate by reaction of 1-hydroxynaphthalene-2-carboxylic acid with phenol, in which the reaction is carried out in an organic, aromatic, water-immiscible solvent in the presence of thionyl chloride and a catalytic amount of an organic nitrogen compound, then the organic solvent is partially removed by distillation, and the phenyl 1-hydroxynaphthalene-2-carboxylate formed is separated by addition of an alkanol of 1 to 6 C atoms and isolated in a customary manner. The product is obtained, avoiding a large excess of phenol, in very good yield and in high purity suitable for further use as an intermediate for dyes in the photographic industry.
申请公布号 DE3242307(A1) 申请公布日期 1984.05.17
申请号 DE19823242307 申请日期 1982.11.16
申请人 HOECHST AG 发明人 WYKYPIEL,WERNER,DR.;TRONICH,WOLFGANG,DR.
分类号 C07C67/08;C07C69/94;(IPC1-7):C07C69/94 主分类号 C07C67/08
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