Isopropyl 1,3 benzodioxolane was synthesized from catechol and isobutyric aldehyde using the phosphotungstic acid supported on activated carbon as catalyst.

• 以邻苯二酚和异丁醛为原料,活性炭固载磷钨酸为催化剂合成了杀虫剂呋喃丹的中间体2-异丙基-1,3-苯并二氧五环。