Racemic metallocene complexes and their preparation
AssigneeBASF SE
InventorsFranz Langhauser, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Stefan Mansel
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Abstract
Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.
Claims4
A cyclopentadienyl compound of the formula II ##STR21## R.sup.1 to R.sup.6 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl radicals as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore be a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.8).sub.3
- R.sup.8 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl,
- Z is silicon, germanium, tin or carbon,
- Y.sup.1 and Y.sup.2 are each ##STR22## R.sup.9 to R.sup.16 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl radicals as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore be a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.17).sub.3
- R.sup.17 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl
- and
- u, v and w are each an integer from 0 to 7, with the proviso that the sum u+v+w is .gtoreq.2.
A cyclopentadienyl compound of the formula III ##STR23## R.sup.1 to R.sup.6 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl radicals as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore be a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.8).sub.3
- R.sup.8 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl,
- Z is silicon, germanium, tin or carbon,
- Y.sup.1 and Y.sup.2 are each ##STR24## R.sup.9 to R.sup.16 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl radicals as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore be a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.17).sub.3
- R.sup.17 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl,
- u, v and w are each an integer from 0 to 7, with the proviso that the sum u+v+w is .gtoreq.2,
- A.sup.1 and A.sup.2 are each fluorine, chlorine, bromine, iodine or --R.sup.18 OSO.sub.3
- and
- R.sup.18 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl.
Dependencies are inferred from the claim text.