abstract |
Preparation of β-aryl alcohols of the general formula I in which the radicals R¹, R² and R³ are the same or different and represent hydrogen, C₁-C₂₀-alkyl, C₅-C₇-cycloalkyl, aryl, C₇-C₁₂-aralkyl or alkaryl, n is the number 0, 1, 2, 3 or 4 means or in which two adjacent radicals R¹ are linked to form a 5- or 6-membered ring, by reacting an aromatic of the formula II with an alkylene oxide of formula III wherein R¹, R² and R³ have the meaning given above, in the presence of Friedel-Crafts catalysts, by the reaction in the presence of a titanium (IV) alcoholate at temperatures from -20 ° C to + 40 ° C in the presence or in the absence of a Performs solvent. |