Process for producing 1-octene from butadiene in the...

Details Process for producing 1-octene from butadiene in the... Process for producing 1-octene from butadiene in the...

C - Chemistry, Metallurgy

07

C

C07C 2/40 (2006.01) C07C 5/05 (2006.01)

Patent

CA 2543068

A method is described for the preparation of 1-octene starting from butadiene, wherein in a first step (a) the bis-hydrodimerization of butadiene to 1,7- octadiene is effected in the presence of a catalyst based on palladium containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent, in a second step (b) the partial catalytic hydrogenation of 1,7- octadiene to 1-octene is effected in the presence of a titanium compound activated with one or more metal alkyls of group 13 (selected from boron, aluminum, gallium, indium).

L'invention concerne un procédé pour préparer du 1-octène à partir de butadiène, ce procédé consistant à effectuer, dans une première étape, la bis-hydrodimérisation du butadiène en 1,7-octadiène, en présence d'un catalyseur à base de palladium contenant une ou plusieurs phosphines monodentate tri-substituées dans un solvant polaire aprotique et, dans une seconde étape, l'hydrogénation catalytique partielle du 1,7-octadiène en 1-octène en présence d'un composé au titane activé par un ou plusieurs alkyles de métal du groupe 13 (sélectionnés parmi le bore, l'aluminium, le gallium, l'indium).

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