【摘要】 研究了以磷酸为催化剂,苯酚和叔丁醇为原料合成2,4-二叔丁基苯酚。合成产物经过利用受阻酚的性质分离提纯,得到高纯度的2,4-二叔丁基苯酚,并考察了影响反应的因素。结果表明:酚醇摩尔比为1∶3,催化剂85%磷酸的用量为10m L,反应时间为5h,反应温度为60℃是最适宜的反应条件;产物收率达57.1%。更多还原

【Abstract】 2,4-Di-t-butylphenol was synthesized with phenol and tert-butyl alcohol as raw material and phosphoric acid as catalyst. The product of high purity was obtained by purification using the chemical properties of hindered phenol. The factors that had influence on the reaction were investigated. The optimal conditions for this reaction were as follows: the molar ratio of phenol to tertbutyl alcohol was 1 ∶3,the dosage of catalyst of 85% aqueous phosphoric acid was 10 m L,the reaction time and temperature were 5h and 60℃ respectively. The yield of 2,4-di-t-butylphenol under such conditions was about 57. 1%.更多还原