05929264 is referenced by 27 patents and cites 48 patents.

The invention relates to a process for the preparation of a compound of the formula IV or IVa ##STR1## in which R.sup.1 -R.sup.5 are preferably hydrogen or alkyl, which comprises reacting a compound I ##STR2## with a compound II ##STR3## in which X.sup.1 and X.sup.2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydration. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.

Title
Process for the preparation of substituted indenes and their use as ligand systems for metallocene catalysts
Application Number
980993
Publication Number
5929264
Application Date
July 10, 1997
Publication Date
July 27, 1999
Inventor
Frank Kuber
Oberursel
DE
Jurgen Rohrmann
Kelkheim
DE
Agent
Connolly & Hutz
Assignee
Targor
DE
IPC
C07F 11/00
C07F 7/28
C07F 17/00
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