Process for preparing 4-hydroxyphenylacetic acid
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United States of America Patent
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Jun 29, 1982
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N/A
app pub date -
Jun 20, 1980
filing date -
Jun 20, 1980
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Expired
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Abstract
A process for preparing 4-hydroxyphenylacetic acid by reducing 4-hydroxymandelic acid in a reaction medium of a lower aliphatic carboxylic acid or a water-containing lower aliphatic carboxylic acid. When the crystalline 4-hydroxymandelic acid is employed as the staring material, 4-hydroxyphenylacetic acid of high quality is obtained in high yields.
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