Nickel ylide complexes, their preparation and use as catalysts in the polymerisation of olefins

摘要

Nickel ylide compounds of the formula (I) <IMAGE> a process for their preparation by reacting a nickel(O) compound or a compound which can be converted in situ into a nickel(O) compound with an ylide of the formula (II) <IMAGE> and an ylide of the formula (III) <IMAGE>, and the use of the nickel ylides as catalysts in the polymerisation of olefins.