Continuous process for producing 5-vinyl-2-norbornene

Details Continuous process for producing 5-vinyl-2-norbornene Continuous process for producing 5-vinyl-2-norbornene

C - Chemistry, Metallurgy

07

C

260/690.7

C07C 13/43 (2006.01) C07C 2/50 (2006.01) C07C 7/20 (2006.01)

Patent

CA 1270860

ABSTRACT OF THE DISCLOSURE: A continuous process for producing 5-vinyl- 2-norbornene, useful as the raw material of 5-ethylidene- 2-norbornene used as a termonomer for EPDM, from a mixture of cyclopentadiene and butadiene or from a mixture of cyclopentadiene and dicyclopentadiene and butadiene by the Diels-Alder reaction which process comprises adding from 10 to 10,000 ppm of N,N-diethylhydroxylamine or 4- oxo-2,2,6,6-tetramethylpiperidine-1-oxyl relative to the total weight of cyclopentadiene and butadiene or of a mixture of cyclopentadiene and dicyclopentadiene and butadiene, continuously introducing the resulting mixture into a pressure reaction vessel, allowing them to react in the absence of any gas phase portion within the said pressure reaction vessel, and continuously withdrawing the reaction product.

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