PREPARATION OF 22SUBSTITUTEDDACRYLIC AMIDE AND 22SUBSTITUTEDDPROPIONIC ACID DERIVATIVES

摘要

PURPOSE:The title compounds, useful as intermediates of antiphlogistic analgesics, are prepared in high yield by the dehydration of 2-(4'-isobutylphenyl)-2-hydroxypropionic acid amides with cation-exchange resins in an inert solvent.