| 摘要 |
The invention relates to a process for the preparation of a metal-organic compound, comprising at least one imine ligand, characterized in that an imine ligand according to formula I or the HA adduct thereof, wherein HA represents an acid, of which H represents its proton and A its conjugate base, is contacted with a metal-organic reagent of formula 2 In the presence of at least 1, respectively at least 2 equivalents of a base, with <?in-line-formulae description="In-line Formulae" end="lead"?>Y-N-R as formula 1, <?in-line-formulae description="In-line Formulae" end="tail"?> wherein Y is selected from a substituted carbon, nitrogen, or phosphorous atom and R represents a substituent, and with <?in-line-formulae description="In-line Formulae" end="lead"?>M<SUP>V</SUP>(L<SUB>1</SUB>)<SUB>k</SUB>(L<SUB>2</SUB>)<SUB>l</SUB>(L<SUB>3</SUB>)<SUB>m</SUB>(L<SUB>4</SUB>)<SUB>n</SUB>X as formula 2, <?in-line-formulae description="In-line Formulae" end="tail"?> wherein: M represents a group 4 or group 5 metal ion V represents the valency of the metal ion, being 3, 4 or 5 L<SUB>1</SUB>, L<SUB>2</SUB>, L<SUB>3</SUB>, and L<SUB>4 </SUB>represent a ligand or a group 17 halogen atom on M and may be equal or different X represents a group 17 halogen atom, k, l, m, n=0, 1, 2, 3, 4 with k+l+m+n+1=V. The invention further relates to a process for the preparation of a polyolefin in the presence of the compound prepared according to the process of the invention.
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