Bisphenol-carboxylic acid esters are prepared from definite phenols and acetoacetic acid esters by condensing the components in the presence of hydrogen chloride at a temperature of from -10.degree. to +15.degree.C, using ethyl mercaptan as catalyst; the obtained esters are useful for stabilizing plastic resins, as varnishing resins, and as fungicidal or bactericidal agents.
双
酚羧酸酯是通过在
氯化氢存在下,在温度从-10度到+15度C的条件下,将明确的
酚和
乙酰乙酸酯缩合而成,使用
乙硫醇作为催化剂;所得的酯对稳定塑料
树脂、作为清漆
树脂以及作为杀菌或杀菌剂是有用的。