Catalytic synthesis of olefins from paraffins

Details Catalytic synthesis of olefins from paraffins Catalytic synthesis of olefins from paraffins

C - Chemistry, Metallurgy

07

C

260/692.1, 260/7

C07C 5/42 (2006.01) C07C 5/333 (2006.01) C07C 5/52 (2006.01) C07C 11/02 (2006.01) C07C 15/46 (2006.01)

Patent

CA 1277997

ABSTRACT CATALYTIC SYNTHESIS OF OLEFINS FROM PARAFFINS Saturated hydrocarbon is transformed catalytically into olefinic hydrocarbon of corresponding skeletal configuration by reacting the saturated hydrocarbon with a suitable alkene cyclopentadienyl or alkene arene transition metal molecular complex, such as bis(ethylene)- pentamethylcyclopentadienyliridium, bis(ethylene)penta- methylcyclopentadienylrhodium and bis(ethylene)hexa- methylbenzene osmium in the presence of free alkene as hydrogen acceptor. The reaction may be performed photochemically under irradiation with ultraviolet light or it may be performed thermolytically under application of heat. The catalyst may be charged to the reaction as a preformed alkene cyclopentadienyl or alkene arene transition metal molecular complex or the catalyst may be formed in situ in the reaction mixture via displacement of ligand from a suitable transition metal complex containing the displaceable ligand, such as dicarbonylpentamethyl- cyclopentadienyliridium or cyclooctadienepentamethylcyclo- pentadienyliridium.

535816

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