Isomerization of cycloolefin from endo-form to exo-form and...

Details Isomerization of cycloolefin from endo-form to exo-form and... Isomerization of cycloolefin from endo-form to exo-form and...

C - Chemistry, Metallurgy

07

C

C07C 13/64 (2006.01) C07C 5/27 (2006.01) C08F 210/02 (2006.01) C08F 232/08 (2006.01)

Patent

CA 2147347

Disclosed is a process for isomerizing an endo form of a cycloolefin to an exo form of the cycloolefin of the formula: (see above formula) (wherein R1 to R18 are each hydrogen, halogen or hydrocarbon and a pair of some of them may form a ring, n is 0 or 1 and m is 0 or a positive integer, provided that m and n cannot be 0 simultaneously) in the presence of a solid acid catalyst; and a resulting isomer mixture of up to 80 mol % of the endo form and at least 20 mol % of the exo form of the cycloolefin. The cycloolefin isomer mixture is useful for the production of an ethylene-cycloolefin random copolymer which in turn is useful for the production of, for example, optical memory disks and fibers.

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