Process for the production of substituted vinylbenzenes

摘要

A process for the production of substituted vinylbenzenes of the general formula: <IMAGE> I wherein R is a lower alkyl group having 1 to 4 C atoms, R1 is hydrogen or an acetyl group and R2 is hydrogen, a lower alkyl group having 1 to 4 C atoms or a benzyl group. A trialkylhydroquinone is cyclized with an aldehyde to an acetal and the latter is pyrolized to the end product. The substituted vinylbenzenes are valuable intermediate products in the synthesis of antioxidants.