节点文献
SiO2-SO3H异相催化一步合成9-芳基-3,4,5,6,7,9-六氢-1H-氧杂蒽-1,8(2H)-二酮
SiO2-SO3H mediated highly efficient one-pot synthesis of 9-aryl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione
【摘要】 以硅胶磺酸(SiO2-SO3H)为催化剂,4-芳硫基芳醛和1,3-环己二酮为原料,于乙醇中合成了标题化合物。该方法具有处理方便、反应时间短、产率高、催化剂价廉易得、可回收重复使用等优点。
【Abstract】 A highly efficient one-pot synthesis of 1,8-dioxo-octahydroxanthene derivatives catalyzed by sulfonic acid covalently anchored onto the surface of silica gel in EtOH was reported.The silica sulfuric acid catalyst(SiO2-SO3H,SSA) was completely heterogeneous and could be recycled for eight consecutive runs without significant loss of activity.This method provides several advantages such as simple work-up,environmental friendliness and shorter reaction time along with high yields.
【关键词】 4-芳硫基芳醛;
1,3-环己二酮;
硅胶磺酸;
氧杂蒽;
【Key words】 4-arylsulfanyl-benzaldehyde; 1,3-cyclohexadione; silica sulfuric acid(SiO2-SO3H,SSA); xanthene;
【Key words】 4-arylsulfanyl-benzaldehyde; 1,3-cyclohexadione; silica sulfuric acid(SiO2-SO3H,SSA); xanthene;
- 【文献出处】 化学试剂 ,Chemical Reagents , 编辑部邮箱 ,2010年07期
- 【分类号】TQ244.2
- 【被引频次】1
- 【下载频次】94