发明授权
US4730083A Process for the preparation of 3,5-dialkyl-4-hydroxy benzoic acid 失效
3,5-二烷基-4-羟基苯甲酸的制备方法

Process for the preparation of 3,5-dialkyl-4-hydroxy benzoic acid
摘要:
An improved process for the preparation of 3,5-dialkyl-4-hydroxybenzoic acid comprising the reaction of 2,6-dialkylphenol and carbon dioxide in the presence of a mono- or polyalkylene glycol ether.
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