Verfahren zur Herstellung substituierter Phenole.

摘要

The substituent X in the phenols of the formula: wherein R1 to R4 are hydrogen or unsubstituted or substituted alkyl, alkenyl or alkynyl, and X is secondary or tertiary alkyl of 3 to 9 carbon atoms, can be removed by heating said phenols in the presence of an alkali metal hydrogensulfate.