An aqueous solution comprising an alkali hydroxide, an aryl or a hetero aryl amine, substituted in ortho position by an alkanoic group and in para position by an inductive electron withdrawing atom or group, and an alkali nitrite is reacted with a mineral acid and hypophosphorous acid in an aqueous medium to afford an aryl and a heteroaryl alkanoic acid substituted in meta position by an electron withdrawing atom or group.
由氢氧化碱、芳基或杂芳基胺(在正位被烷基取代,在对位被感应电子原子或基团取代)和
亚硝酸碱组成的
水溶液在
水介质中与矿物酸和
次磷酸反应,得到在元位被电子原子或基团取代的芳基和杂芳基烷酸。