| 摘要 |
PROBLEM TO BE SOLVED: To provide a 3,6-di(3',5'-bis(fluoroalkyl)phenyl)pyromellitic dianhydride containing fluorine, and further to provide a method for producing the dianhydride. SOLUTION: This 3,6-di(3',5'-bis(fluoroalkyl)phenyl)pyromellitic dianhydride is produced through a 3,6-di(3',5'-bis(fluoroalkyl)phenyl)-1,2,4,5-tetramethylbenzene and a 3,6-di(3',5'-bis(fluoroalkyl)phenyl)pyromellitic acid by using a 3,5- bis(fluoroalkyl)phenylboronic acid and 3,6-dibromo-1,2,4,5-tetramethylbenzene as raw materials. |
