Synthesis of Isoamyl Acetate Under Signal-Mode Focused Microwave

Isoamyl acetate is an important organic agent,which is extensivly used in spicery,solvent and extractant etc.The discover microwave precision instrument is adopted in this experiment to synthesize isoamyl acetate.Ice acetic acid and isoamyl alcohol is taken as raw material,anhydrous calcium chloride and tin tetrachloride are used as catalyst.The effect of the amount of the catalyst,the power and time of microwave irradiation and the ratio of reactant on the yield was studied.The results show that n(ice acetic)/n(isoamyl alcohol) is 2.5∶1,calcium chloride anhydrous-aluminium chloride is 4 g,irradiation power is 120 W,irradiation time is 16 min,the conversion rate of isoamyl acetate is 95.9%.The results show that the best effect of catalysis is titanium sulfate,which is the best catalyzer of synthesizing isoamyl acetate.The isoamyl acetate was charactered as the target product by IR and refractometer.