Chemical process
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United States of America Patent
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May 11, 1993
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N/A
app pub date -
Jun 29, 1992
filing date -
Jul 16, 1991
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Abstract
Process for the preparation of compounds of formula (I): Y--Mg--X (I) wherein Y is an optionally substituted phenyl or benzyl, and X is a halogen, by reaction of a compound of formula (II): Y--X (II) wherein Y and X have the meanings given above, with magnesium in a solvent, characterized in that the solvent is an acetal of formula (III): ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl having from 1 to 6 carbon atoms or when taken together form a dioxolane ring, and R.sup.3 is hydrogen or alkyl having from 1 to 6 carbon atoms.
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