Preparation of substituted indenes
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United States of America Patent
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Apr 3, 2007
Grant Date -
Nov 17, 2005
app pub date -
Oct 18, 2003
filing date -
Oct 22, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a simple process for preparing specifically substituted indenes of the formula (I) or (Ia) ##STR00001## to compounds of the formula (II) serving as starting materials ##STR00002## and to the use of the compounds of the formula (II) as starting materials for the synthesis of substituted indenes.
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