PROCESS FOR THE PRODUCTION OF SUBSTITUTED VINYLBENPROCESS FOR THE PRODUCTION OF SUBSTITUTED VINYLBENZENES ZENES

摘要

A process is disclosed for the production of substituted vinylbenzenes of the general formula: (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 form an acetal and the latter is pyrolized to produce the end product. The substituted vinylbenzenes are valuable intermediate products in the synthesis of antioxidants.