Results showed the optimal reaction conditions were 353 K, the mole ratio of aldehydes or ketones to IL was 5:1, the yield of acetals achieved 93.8%.

• 得出最佳反应条件为：反应温度353K，醛（酮）：IL（摩尔比）=5:1，此时缩醛（酮）收率最高可达到93.；8%25。