在琥珀酸二酰亚胺磺酸铈催化下,吲哚、醛和2,2-二甲基-1,3-二噁烷-4,6-二酮在无溶剂条件下超声辐射合成了10种5-[(3-吲哚基)-甲基]-2,2-二甲基-1,3-二噁烷-4,6-二酮衍生物.当催化剂的用量为3%(摩尔分数)时,30℃反应30~60 min,收率为68.9%~96.7%.此外,还探讨了琥珀酸二酰亚胺磺酸铈的催化机理.该方法具有条件温和,反应时间短且收率高的优点.催化剂邻琥珀酸二酰亚胺磺酸铈对环境友好且可循环利用. Under the catalysis of succinimidyl sulfonate, indole, aldehyde and 2,2-dimethyl-1,3-dioxane-4,6-dione were synthesized by ultrasonic irradiation under solvent-free conditions The 5 - [(3-indolyl) -methyl] -2,2-dimethyl-1,3-dioxane-4,6-dione derivative was used as catalyst. When the catalyst was used in an amount of 3% Fraction), the reaction was carried out at 30 ℃ for 30-60min and the yield was 68.9% ~ 96.7% .In addition, the catalytic mechanism of cerous succinate bisimide sulfonate was also discussed.The method has the advantages of mild conditions, short reaction time, High rate of catalyst. Cerium bisuccinate sulfonate catalyst is environmentally friendly and recyclable.