| abstract |
The present invention provides a method for efficiently producing desired 1,3,3,4,4-pentafluorocyclobutene by isomerizing 1,2,3,3,4-pentafluorocyclobutene. [Solution] The following chemical formula (1) [Chemical 1] 1,2,3,3,4-pentafluorocyclobutene represented by the following isomerization reaction using Lewis acid or metal fluoride: [Chemical formula 2] 1,3,3,4,4-pentafluorocyclobutene represented by the following formula: [Selection figure] None |