| 摘要 |
CASE 5794 ASC/rag 12/08/1988 CATALYZED PROCESS FOR THE PREPARATION OF OXYDIPHTHALIC ANHYDRIDES Oxydiphthalic anhydrides are prepared by reacting a halophthalic anhydride with water and an alkali metal compound such as KF, CsF, or K2CO3 in the presence of a copper catalyst. |
