Procédé pour la dimérisation d'α-oléfines inférieures, ainsi que les produits conformes a ceux obtenus par le présent procédé ou procédé similaire.

摘要

1,243,809. Dimerizing olefins. VEBACHEMIE A.G. 2 Oct., 1968 [3 Oct., 1967], No. 46841/68. Addition to 1,151,550. Heading C5E. Lower alpha-olefins, e.g. propylene, are dimerized in the absence of oxygen and in the presence of an electron donor, a solvent and a catalyst, the solvent being the dimerization product itself, and the catalyst comprising (a) a nickel compound, e.g. nickel acetylacetonate, and (b) an organo-aluminium compound of formula Al 2 R n R1X m in which R is alkyl, R1 is alkyl or alkoxy, X is halogen, n+m = 5 and m is 2 or more, e.g. aluminium sesquichloride. A suitable electron donor is triphenyl phosphine.