Production of metal complexes useful as catalysts, e.g. for oligomerization or polymerization of olefins, alkynes or 1,3-dienes, comprises reacting an oxalamidine derivative with a metal compound

摘要

Production of catalytically active metal complexes (I) comprises reacting an oxalamidine derivative (II), optionally in alkali metal, magnesium or aluminum salt form, with a reactive metal compound (III). Production of catalytically active metal complexes (I) comprises reacting an oxalamidine derivative of formula (II), optionally in alkali metal, magnesium or aluminum salt form, with a reactive metal compound of formula (III): R1-R4 = optionally substituted aryl, alkyl, furfuryl, furyl or cycloalkyl; M = a divalent or trivalent metal; X = 1,3-diketonate, alkyl, aryl, alkoxide, amide, allyl or heteroallyl; n = a number satisfying the valency of M.