In the presence of catalyst phosphoric acid, isomeric addition of bipentene with cis-butenedioic anhydride can form terpenyl bu tenedioic anhydride compound as expoxylite firming agent.
用磷酸做催化剂，催化工业双戊烯与顺丁烯二酸酐进行异构加成反应。
2
The invention discloses a method for preparing 4-terpineol. In the method, bipentene serving as a raw material is dehydrated to from the 4-terpineol in the presence of an acid catalyst.