Carboxylic acid synthesis process
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United States of America Patent
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Jun 26, 1990
Grant Date -
N/A
app pub date -
Jul 30, 1987
filing date -
Aug 1, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is described for preparing alpha-arylalkanoic acids, which comprises preparing and subsequently rearranging ketals of formula ##STR1## (in which Ar, R, R.sub.1, R.sub.2 and R.sub.4 have the meanings given in the description). The ketals of formula II are prepared from the corresponding alpha-hydroxyketals. The rearrangement reaction is conducted under mild conditions.
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