【摘要】 设计并合成了含开链季铵阳离子的功能化离子液体N,N-二甲基-N-十二烷基-N-磺酸丙基硫酸氢铵盐([DMDAPS].[HSO4]),用1H NMR、MS和元素分析对其结构进行了表征。所制备的[DMDAPS].[HSO4]兼具B rφnsted酸和相转移催化双重功能,能够在水相中催化芳香醛、酮、芳香胺的三组分M ann ich反应,产率达到80%~91%。催化剂可以循环使用9次,而催化活性无明显变化。生物降解性能实验表明,催化剂[DMDAPS].[HSO4]可以生物降解。更多还原

【Abstract】 The novel task-specific room-temperature ionic liquid 3-(N,N-dimethyldodecyl ammonium)propanesulfonic acid hydrogen sulfate [DMDAPS]· was designed and synthesized as a biodegradable recyclable catalyst for one-pot three-component Mannich reaction in water.Twelve β-amino carbonyl compounds were obtained with yield of 80%-91% under the mild conditions.The product can be simply separated from the catalyst/water,and the enviromentally benign catalyst can be reused at least 9 times without noticeably decreasing of the catalytic activity.更多还原