Fructone - B was synthesized sing silicotungstic acid catalyst absorbed on activated carbon from ethyl ace-toacetate and 1,2 - propylene glycol with the recovery of 95% .

• 以乙酰乙酸乙酯和1,2-丙二醇为原料,用活性碳固载硅钨酸作催化剂合成了苹果酯-B,产率达95%25。