Citation: Yuan Yuan Wang, Rong Wang, Liang Chun Wu, Li Yi Dai. Preparation of fructone catalyzed by water-soluble Brønsted acid ionic liquids[J]. Chinese Chemical Letters, ;2007, 18(1): 24-26. doi: 10.1016/j.cclet.2006.11.023 shu

Preparation of fructone catalyzed by water-soluble Brønsted acid ionic liquids

a Department of Chemistry, East China Normal University, Shanghai 200062, China;
b Department of Chemistry, Shanghai Normal University, Shanghai 200234, China

Received Date: 18 May 2006

Fund Project: This work was financially supported by the Key Project of Chinese Ministry of Education (No. 105075) and National Natural Science Foundation of China (No. 20503016).

Fructone (2-methyl-2-ethylacetoacetate-1,3-dioxolane), a flavouring material, has been synthesized from ethyl acetoacetate and glycol using five water-soluble Brønsted acid ionic liquids as catalysts for the first time. The used Brønsted acid ionic liquids include[Hmim]Tfa,[Hmim]Tsa,[Hmim]BF₄,[Bmim]HSO₄,[Bmim]H₂PO₄, and[Hmim]BF4 showed the highest catalytic activity for the preparation of fructone. After reaction, the product could be isolated from the reaction system automatically, and the ionic liquid could be directly reused without dehydration.
- Fructone,
- Water-soluble Brønsted acid ionic liquids,
- Catalyst
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