Synthesis of i-amyl pripionate catalyzed by supported heteropoly acid

i-Amyl pripionate was synthesized using heteropoly acid of phosphorus molybdenum and tungsten supported on activated carbon as the catalyst.Optimum reaction condition was obtained as follows: n(alocohol)∶n(acid)=1.2∶1,catalyst loading = 1.0 g(equivalent to 9% of reacting propionic acid),water-carrying agent 8 mL,reaction time 2.5 h.i-Amyl pripionate yield of 84.5% was obtained.