Abstract
A selective, catalytic dimerization reaction of propene to 2,3-dimethylbutene-1 was investigated. The catalyst is prepared in situ by the reaction of a nickel coordination complex R 4P [( i − C 3H 7) 3PNiCl 3] with ethylaluminumsesquichloride in toluene solution. The active species has to be stabilized by the reacting monomer and is thought to involve a coordinated nickel hydride intermediate. Very high rates of dimerization and a selectivity of ca. 68% are achieved under certain reaction conditions.
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