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US 2003/0191255 A1Published application
Metal complexes of iminohydroxamic acids
AssigneeBASF SE
InventorsMarc Oliver Kristen, Peter Preishuber-Pflugl, Benno Bildstein, Alexander Krajete
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Abstract
Complexes of the formula I 1 where M═Ni, Pd; process for preparing the metal complexes and the use of the complexes obtainable in this way for the polymerization and copolymerization of olefins, for example in suspension polymerization processes, gas-phase polymerization processes and bulk polymerization processes.
Claims10
A complex of the formula I,
- 14
- where the variables are defined as follows:
- Nu is selected from among O, S, N—R4*, P—R4*,
- M is selected from among Ni, Pd;
- h is an integer from 0 to 4;
- X are identical or different and are selected from among halogen, C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl,
- R1, R4, R4* are identical or different and are selected from among
- hydrogen,
- C1-C18-alkyl, substituted or unsubstituted,
- C2-C18-alkenyl, substituted or unsubstituted, which has from one to 4 isolated or conjugated double bonds and is bound via a single bond;
- C3-C12-cycloalkyl, substituted or unsubstituted,
- C7-C13-aralkyl,
- C6-C14-aryl, unsubstituted or substituted by one or more identical or different substituents selected from among
- C1-C18-alkyl, substituted or unsubstituted,
- C2-C18-alkenyl, substituted or unsubstituted,
- C3-C12-cycloalkyl,
- C7-C13-aralkyl,
- C6-C14-aryl,
- halogen,
- C1-C6-alkoxy, substituted or unsubstituted,
- C6-C14-aryloxy,
- SiR5R6R7 and O—SiR5R6R7;
- five- to six-membered nitrogen-containing heteroaryl radicals which may be unsubstituted or substituted by one or more identical or different substituents selected from among
- C1-C18-alkyl, substituted or unsubstituted,
- C2-C18-alkenyl, substituted or unsubstituted,
- C3-C12-cycloalkyl,
- C7-C13-aralkyl,
- C6-C14-aryl,
- halogen,
- C1-C6-alkoxy,
- C6-C14-aryloxy,
- SiR5R6R7 and O—SiR5R6R7;
- and are bound via a single bond;
- R2 is C6-C14-aryl, unsubstituted or substituted by one or more identical or different substituents, or a five- to six-membered nitrogen-containing heteroaryl radical, unsubstituted or substituted by one or more identical or different substituents, where the substituents are as defined above;
- R3, R8 are each C1-C8-alkyl, C2-C18-alkenyl, substituted or unsubstituted and having from one to 4 isolated or conjugated double bonds, C3-C12-cycloalkyl, substituted or unsubstituted, C7-C13-aralkyl, C6-C14-aryl, unsubstituted or substituted by one or more identical or different substituents, or a five- to six-membered nitrogen-containing heteroaryl radical, unsubstituted or substituted by one or more identical or different substituents, where the substituents are as defined above;
- where adjacent radicals R1 to R4 or R4* may be joined to one another to form a 5- to 12-membered ring which may in turn bear substituents selected from among C1-C8-alkyl, substituted or unsubstituted, C2-C8-alkenyl, substituted or unsubstituted and having from one to 4 isolated or conjugated double bonds, C3-C12-cycloalkyl, substituted or unsubstituted, C7-C13-aralkyl and C6-C14-aryl;
- L1 is an uncharged, organic or inorganic ligand,
- R5 to R7 are identical or different and are selected from among hydrogen, C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl.
35 more elements
Dependencies are inferred from the claim text.