Polyaniline Supported 12-Tungstosilicic Acid as the Catalyst for Acetals and Ketals Synthesis
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2009年第3期
论文作者：杨永金 PHILIPPE G Merle
文章页码：371 - 375
摘 要：A novel environmental friendly catalyst, H4SiW12O40/PAn was prepared and identified by FT-IR, XRD and TG/DTA. The optimal synthetic protocol was a PAn to H4SiW12O40 mass ratio of 1∶1, a 20 mL of methanol and a reaction time of 2 h at reflux. It was used in catalytic synthesis of ten important ketals and acetals with a high catalytic activity. With an aldehyde/ketone to glycol molar ratio of 1∶1.5 and a 1 wt% catalyst loading, the yields of ketals and acetals could reach 60.0%-93.8 % after 1 h.
杨永金1，PHILIPPE G Merle2
1. Hubei Key Laboratory of Pollutant Analysis & Reuse Technology,College of Chemistry and Environmental Engineering, Hubei Normal University2. Department of Chemistry and Biochemistry, Concordia University
摘 要：A novel environmental friendly catalyst, H4SiW12O40/PAn was prepared and identified by FT-IR, XRD and TG/DTA. The optimal synthetic protocol was a PAn to H4SiW12O40 mass ratio of 1∶1, a 20 mL of methanol and a reaction time of 2 h at reflux. It was used in catalytic synthesis of ten important ketals and acetals with a high catalytic activity. With an aldehyde/ketone to glycol molar ratio of 1∶1.5 and a 1 wt% catalyst loading, the yields of ketals and acetals could reach 60.0%-93.8 % after 1 h.
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