Co-oligomerisation process

Details Co-oligomerisation process Co-oligomerisation process

C - Chemistry, Metallurgy

07

C

C07C 11/02 (2006.01) C07C 2/04 (2006.01) C07C 2/34 (2006.01) C07C 15/44 (2006.01)

Patent

CA 2074689

A process for the preparation of olefins of the general formula R-(CH2-CH2)p-CH-CH2 in which formula R is a hydrocarbyl group and p is an integer of at least 1, comprising reacting ethene with at least one further alpha olefin of the general formula R-CH-CH2 under oligomerisation conditions in the presence of a catalyst system obtainable by combining a first component which is a bis(cyclopentadienyl) Group IVA metal compound containing a substituent which is attached to the metal and which is capable of reacting with a cation, and a second component which is a compound having a bulky anion containing a plurality of boron atoms and which is substantially non-coordinating under the reaction conditions and a cation, and recovering an oligomeric product comprising linear olefins of the general formula R-(CH2-CH2)p-CH-CH2, wherein the further alpha olefin(s) and ethene are present in a molar ratio of at least 1 and wherein at least one of the cyclopentadienyl groups or the metal compound is (cyclo)alkyl and/or arylalkyl substituted.

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