Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Patent
1997-07-10
1999-07-27
Nazario-Gonzalez, Porfirio
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
556 12, 556 28, 556 43, 556 53, 556 54, 556 56, 585532, 526160, 526943, 502103, 502117, C07F 1700, C07F 728, C07F 1100
Patent
active
059292644
ABSTRACT:
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.
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Kuber Frank
Rohrmann Jurgen
Nazario-Gonzalez Porfirio
Targor GmbH
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