on the conditions of polyphosphoric acid(PPA) as catalyst and solvent,acrylic acid as acylating agent,dibenzo 24 crown 8 being acylated.

• 以多聚磷酸(PPA)为催化剂和反应溶剂,丙烯酸为酰化剂,对二苯并-24-冠-8进行酰化,成功地合成了双茚满酮型二苯并-24-冠-8。