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Catalytic Synthesis of α Amyl Cinnamaldehyde by Potassium Fluoride/Alumina

Wang Hongqing (Department of Chemical Engineering,Central South Institute of Technology,Hengyang,Postcode 421001) Xia Liming (The Centre of Analysis,Hu'nan Institute of Chemical Technology,Changsha,Postcode 410007)  
Benzaldehyde and heptaldehyde as materials,the α amyl cinnamaldehyde is synthesized in the presence of potassium fluoride on alumina.The sequence of the effects on reaction is benzaldehyde catalyst reaction temperaturethe dropping speed of heptaldehydereaction time.The optimum production conditions are as follows:benzaldehyde∶heptaldehyde∶catalyst is 1.2mol∶1.0mol∶0.06mol,the dropping speed of heptaldehyde is 6h,reaction temperature is 60℃,reaction time is 2h.Under the optimum conditions,the yield of α amyl cinnamaldehyde can reach 92.1%.
【CateGory Index】: TQ655
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