Catalytic Application of H4SiW12O40/SiO2 in Synthesis of Acetals and Ketals
A novel catalyst, H4SiW12O40/SiO2 was synthesized by a sol-gel technique, and characterized by FT-IR and XRD. Catalytic application of H4SiW12O40/SiO2 for synthesis of acetals and ketals were tested. The variation of different reaction parameters, such as mole ratio of aldehyde/ketone to alcohols, catalyst dosage and reaction time on the yield of acetals and ketals were also studied. The results reveal that the H4SiW12O40/SiO2 catalysis generally results in good yields of acetals and ketals under mild reaction conditions and the high activity and stability of the catalyst is well retained on recycling.
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
S. J. Yang et al., "Catalytic Application of H4SiW12O40/SiO2 in Synthesis of Acetals and Ketals", Advanced Materials Research, Vols. 284-286, pp. 2374-2379, 2011