Process for preparing vinyl phenol

摘要

Described in a process for preparing food grade paravinyl phenol using as a starting material parahydroxybenzaldehyde whereby the parahydroxybenzaldehyde is first reacted with malonic acid and is then decarboxylated in one step to form an impure paravinyl phenol. The impure paravinyl phenol is then acetylated to form paraacetoxy phenol which is separated from the impurities and hydrolyzed thereby yielding food grade, substantially pure, paravinyl phenol.