SO3H-functionalized ionic liquids as efficient and recyclable catalysts for the synthesis of pentaerythritol diacetals and diketals

作者：Wang, Yuanyuan; Gong, Xinxin; Wang, Zhizhong; Dai, Liyi^*

来源：Journal of Molecular Catalysis A: Chemical , 2010, 322(1-2): 7-16.

DOI：10.1016/j.molcata.2010.01.011

• SO3H-functionalized ionic liquids
• Pentaerythritol diacetals and diketals
• Structure-catalytic activity relationship
• Ab initio calculation

The efficient, simple and environmentally friendly synthesis of pentaerythritol diacetals and diketals using SO3H-functionalized ionic liquids (ILs) as catalysts was reported. The ILs showed high catalytic activities and reusabilities with good to excellent yields of the desired products. H-0 (Hammett function) values and the minimum-energy geometries of SO3H-functionalized ILs were determined and the results revealed that the acidities and catalytic activities of ILs in acetalization were related to their structures. The IL [PSPy][OTf] with the shortest H-O bond distance had the strongest acidity and the highest catalytic activity in the synthesis of pentaerythritol diacetals and diketals.

• 出版日期2010-5-1
• 单位华东师范大学