摘要
用转移加氢法由间苯二酚合成了1,3-环己二酮。适宜的反应条件为:以氢气还原的5%Pd/C 为催化剂,甲酸钠为氢供体,水作溶剂,在70℃反应1 h,1,3-环己二酮的收率为82.1%(HPLC)。考察了 PdCl_2/C的还原方式。催化剂经 XRD 表征确认了其活性组分是原子态的 Pd,初步确定催化剂失活的主要原因是杂质堵塞了活性炭载体中的微孔。
1,3-Cyclohexanedione was prepared from resorcinol through transfer hydrogenation with 5%Pd/C as catalyst. The optimal conditions were obtained as follows： the catalyst prepared by impregnation method and reduced by hydrogen, water as solvent, sodium formate used as hydrogen donor, reaction time 1 h. Under these conditions, the yield of 1, 3-cyclohexanedione was 82. 1% （HPLC）. The catalyst characterized by XRD, BET and TG techniques. The results showed that inactivation of catalyst was induced by impurity.
出处
《精细石油化工》
CAS
CSCD
北大核心
2005年第5期13-16,共4页
Speciality Petrochemicals
