VERFAHREN ZUR HERSTELLUNG VON ALPHA, PARA- DIMETHYLSTYROL.

摘要

This invention relates to a process for the production of alpha, para-dimethyl styrene by catalytic dehydrogenation of para-cymene in the substantial absence of oxygen or an oxidising gas and in the presence of steam. The catalyst used is iron oxide, Fe3O4. The reaction is carried out at a temperature in the range from 500 to 700 DEG C and a pressure from 0.1 to 10 atmospheres. The product is a valuable intermediate for the manufacture of perfumes.