Preparation process for beta-alkoxy acrylic acid
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United States of America Patent
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Apr 28, 1998
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app pub date -
Oct 3, 1995
filing date -
Apr 15, 1993
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Abstract
A method for prerparing compounds of formula (I), wherein R is an optionally substituted alkenyl or alkynyl radical having up to 8 carbon atoms, or an optionally substituted mono- or polycyclic aryl or heteroaryl radical, and R.sub.1 and R.sub.2 are an alkyl radical having up to 4 carbon atoms. According to the method, a compound of the formula (II), wherein X is a halogen atom, is exposed to an organometallic compound of the formula (III): RZ, wherein R has the same meaning as before and Z is a metal or metal derivative. Alternatively, a compound of formula (II'), wherein Z' is a metal or metal derivative, is exposed to a compound of the formula (III'): RX', wherein X' is a nucleophilic reaction leaving group. ##STR1##
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