A process for the removal of acids from reaction mixtures, comprising at least one product of value which is sparingly soluble in water, by at least one unpolar amine as an auxiliary base, which includes: a) reacting the auxiliary base with the acid with formation of a salt; b) reacting the salt formed in step a) with a further base which accepts the acid with liberation of the auxiliary base and combines with the acid to be accepted from the auxiliary base to form a salt which is very readily soluble in water; c) extraction of the mixture obtained in step b) with water or an aqueous medium, wherein the salt of the further base dissolves in the aqueous phase and the product of value, or the solution of the product of value, in a suitable solvent and the auxiliary base form at least one separate nonaqueous phase; and d) removal by distillation of at least part of any solvent present from the at least one nonaqueous phase obtained in step c), to form two nonmiscible liquid phases.
一种从反应混合物中去除酸的方法,包括至少一种在
水中溶解度较低的具有价值的产物,通过至少一种非极性胺作为辅助碱,其步骤包括:a)将辅助碱与酸反应,形成盐;b)将步骤a)中形成的盐与另一接受酸的碱反应,释放出辅助碱并与从辅助碱中接受的酸结合,形成在
水中非常容易溶解的盐;c)用
水或
水性介质提取步骤b)中获得的混合物,其中另一碱的盐溶解在
水相中,而具有价值的产物或其溶液在适当的溶剂中与辅助碱形成至少一个单独的非
水相;d)通过蒸馏从步骤c)中获得的至少一个非
水相中去除存在的任何溶剂的至少一部分,形成两个不相溶的液相。