Acetalization of carbonyl compounds catalyzed by GaCl3 immobilized on imidazolium-styrene copolymers

作者：Bao Quanxi; Qiao Kun^*; Tomida Daisuke; Yokoyama Chiaki

来源：Catalysis Communications, 2009, 10(12): 1625-1628.

DOI：10.1016/j.catcom.2009.04.018

• Acetalization
• Ionic liquids
• Copolymers
• Metal chlorides

In this study, preparation of imidazolium-styrene copolymer-supported metal chloride catalysts and their use in acetalization reactions are described. By comparison with ionic liquid-modified silica gel, the imidazolium-styrene copolymers were demonstrated to be a more efficient solid support for immobilization of metal chlorides. GaCl3 immobilized on imidazolium-styrene copolymers can be used as an efficient and reusable heterogeneous catalyst for acetalization of carbonyl compounds with methanol, offering a catalytic performance that is on par with its homogeneous counterpart.

• 出版日期2009-6-25