Process for dimerizing lower alpha-olefins

Details Process for dimerizing lower alpha-olefins Process for dimerizing lower alpha-olefins

1978-06-09

1979-05-22

Davis, C.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C07C 321

Patent

active

041559460

ABSTRACT:
A process for dimerizing lower .alpha.-olefins using a catalyst comprising (A) at least one nickel compound selected from the group consisting of organic acid salts of nickel, inorganic acid salts of nickel and complexes of nickel, (B) a trialkyl aluminum, (C) at least one phosphorus-containing compound selected from the group consisting of tri-valent phosphorus compounds represented by the formulae: (I) PR.sup.1 R.sup.2 R.sup.3, (II) (R.sub.2.sup.1 N).sub.n PR.sub.3-n.sup.2 and (III) (R.sup.1 O).sub.n PR.sub.3-n.sup.2 (in which R.sup.1, R.sup.2 and R.sup.3 are each an alkyl, cycloalkyl, alkenyl, aryl or aralkyl group having up to 18 carbon atoms and n is an integer of 1 to 3), and (D) a halogenated phenol of the formula (IV), ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4 and X.sub.5 are each a halogen or hydrogen atom or a hydroxyl group and at least one of them is a halogen atom.

REFERENCES:
patent: 3652687 (1972-03-01), Bergem et al.
patent: 3803053 (1974-04-01), Yoo et al.
patent: 3872026 (1975-03-01), Dunn et al.

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