Preparing alpha-arylalkanoic acids
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United States of America Patent
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Apr 2, 1991
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N/A
app pub date -
Feb 6, 1989
filing date -
Jul 31, 1985
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Expired
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Abstract
Compounds are described of formula ##STR1## in which: Ar represents an aryl, possibly substituted; R represents a C.sub.1 -C.sub.4 alkyl; R' represents a hydroxyl, an alkoxy, an amino group possibly mono or di-alkyl substituted, or an O.sup.-- M.sup.+ group where M.sup.+ represents the cation of an alkaline metal; X represents a hydrogen, chlorine, bromine or iodine atom, a hydroxyl, or an acyloxy, alkylsulphonyloxy or arylsulphonyloxy group. The compounds of formula I can be easily transformed into alpha-arylalkanoic acids of formula ##STR2## in which Ar and R have the aforesaid meanings.
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