催化学报 ›› 2015, Vol. 36 ›› Issue (2): 237-243.DOI: 10.1016/S1872-2067(14)60219-9

• 论文 • 上一篇    下一篇

I2/离子液体作为可回收均相催化剂在微波条件下高效制备全乙酰糖

熊兴泉, 易超, 韩骞, 石霖, 李四中   

  1. 华侨大学材料科学与工程学院, 福建省高校功能材料重点实验室, 福建厦门361021
  • 收稿日期:2014-06-19 修回日期:2014-08-29 出版日期:2015-01-21 发布日期:2015-01-21
  • 通讯作者: 熊兴泉
  • 基金资助:

    国家自然科学基金(21004024); 福建省自然科学基金(2011J01046); 福建省“高校新世纪优秀人才支持计划”(2012FJ- NCET-ZR03); 福建省“高校杰出青年科研人才培育计划”(11FJPY02); 华侨大学中青年教师科研提升资助计划(ZQN-YX103); 福建省青年人才创新项目(2011J05131).

I2/ionic liquid as a highly efficient catalyst for per-O-acetylation of sugar under microwave irradiation

Xingquan Xiong, Chao Yi, Qian Han, Lin Shi, Sizhong Li   

  1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China
  • Received:2014-06-19 Revised:2014-08-29 Online:2015-01-21 Published:2015-01-21
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21004024), the Natural Science Foundation of Fujian Province (2011J01046), the Program for New Century Excellent Talents in University of Fujian Province (2012FJ-NCET-ZR03), the Promotion Program for Young and Middle-Aged Teachers in Science and Technology Research of Huaqiao University (ZQN-YX103), and the Special Foundation for Young Scientists of Fujian Province (2011J05131).

摘要:

以可回收的I2/PEG400型离子液体(I2/IL400)为催化体系, 发展了一种高效、实用的合成全乙酰糖衍生物的方法. 结果表明, 以糖与乙酸酐为原料, 在微波辐射、无溶剂条件以及I2/IL400体系中, 数分钟之内可以非常高的产率(90%-99%)和数十毫摩尔规模(50.0 mmol)制备出全乙酰糖. 通过简单的甲苯萃取, 可以从I2/IL400体系中分离出全乙酰糖, I2/IL400体系可循环使用6次, 且产率均在90%以上. 当反应规模扩大到50.0 mmol时, 该体系依然能高效快速地催化糖的全乙酰化, 并且可以循环使用5次, 产率依然维持在90%左右.

关键词: 全乙酰糖, 碘, 离子液体, 微波辐射

Abstract:

A practical and highly efficient approach was developed to synthesize peracetylated sugar derivatives using a recyclable iodine/PEG400-based ionic liquid catalyst (I2/IL). The peracetylated sugars were readily obtained in a few minutes in excellent yields (90%-99%, 13 examples) on a multi-gram scale (50.0 mmol) by the reaction of sugar and acetic anhydride under microwave irradiation in the absence of a volatile organic solvent. The desired product was easily obtained by simple extraction with toluene from the reaction mixture, and I2/ILs can be readily recovered and reused at least six times without obvious loss in the yield. When the scale of the per-O-acetylation reaction was increased to 50.0 mmol, the desired product was still obtained in 90% yield after five recycles.

Key words: Peracetylated sugar, Iodine, Ionic liquid, Microwave irradiation