| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 52630 | Catalysis Communications | 2006 | 6 Pages |
Abstract
Choline chloride · xZnCl2 (x = 1–3) or benzyltrimethylammonium chloride · 2ZnCl2 have been used as efficient and recyclable catalysts for protection of carbonyls to 1,3-dioxolanes and 1,3-dioxanes at room temperature under solvent-free conditions. FT-IR investigation demonstrates the four ionic liquids have similar Lewis acid strength, which is in agreement with the activities observed in the acetalization reaction. The catalytic system choline chloride · 2ZnCl2 can be reused up to five times without appreciable loss of activity. The simple procedures as well as easy recovery and reuse of this novel catalytic system are expected to contribute to the development of more benign acetalization procedure of carbonyl compounds.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Zhiying Duan, Yanlong Gu, Youquan Deng,