在N-甲基咪唑三氟甲磺酸盐的催化下,一系列的醛和酮有效地转化为相应的缩醛,反应条件温和.催化剂的循环使用结果表明催化剂便于回收和再使用,N-甲基咪唑三氟甲磺酸盐是可以循环使用的催化剂. Under the catalysis of N-methylimidazolium trifluoromethanesulfonate, a series of aldehydes and ketones are efficiently converted to the corresponding acetals, and the reaction conditions are mild.The results of the recycle of the catalyst show that the catalyst is easy to be recovered and reused, the N- Methylimidazolium triflate is a recyclable catalyst.