A process for the preparation of aromatic hydroxycarboxylic acids by reacting alkali metal salts of phenol with carbon dioxide in organic phosphine oxides containing straight or branched alkyl groups having from 1 to 8 carbon atoms and phenyl groups.
一种通过
苯酚的碱
金属盐与
二氧化碳在含有 1 至 8 个碳原子的直链或支链烷基和苯基的有机膦氧化物中反应制备芳香族羟基
羧酸的工艺。