Disclosed is the compound of formula (I), known by the name of diethylhexyl butamido triazone, characterised by a low content of impurities deriving from the preparation process, and by low APHA colour values. The compound according to the invention is obtained by reacting cyanuryl chloride with one equivalent of para-aminobenzoic acid, reacting the intermediate obtained with two equivalents of 2-ethylhexyl-4- aminobenzoate, activating the carboxy group, for example by formation of acyl chloride, and final reaction with tert-butylamine. The compound according to the invention is a UV-B filter which can be advantageously used in cosmetic formulations.
公开的是
化学式(I)的化合物,通常被称为
二乙基己基丁酰
三唑酮,其特点是来源于制备过程的杂质含量低,以及低的APHA色值。根据本发明的化合物是通过将
氰尿酰
氯与相当量的
对氨基苯甲酸反应获得,将得到的中间体与两当量的2-乙基己基-4-
氨基
苯甲酸酯反应,激活羧基,例如通过酰
氯的形成,最后与
叔丁基胺反应而得。根据本发明的化合物是一种UV-B过滤剂,可有利地用于化妆品配方中。