NOVEL NICKEL-BASED COMPLEX AND USE THEREOF IN A METHOD FOR THE OLIGOMERISATION OF OLEFINS

摘要

The invention relates to a novel disymmetric nickel-based complex and to the method for the production thereof from at least one diphosphinamine ligand B1 of formula (R1)(R'1)P-N(R3)-P(R2)(R'2), or an iminobisphosphine ligand B2 of formula (R3)N=P(R1)(R'1)-P(R2)(R'2). The invention also relates to the use of said complex in a method for the oligomerisation of olefins.