Process for the preparation of phenyl ethanols

• Main Authors: HOELDERICH, WOLFGANG, GOETZ, NORBERT, HUPFER, LEOPOLD
• Format: Patent
• Language: English; French; German
• Published: 26.07.1989
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

Die Anmeldung betrifft ein Verfahren zur Herstellung von Phenylethanolen der Formel wobei R Wasserstoff, Alkyl- mit 1 bis 4 Kohlenstoffatomen, Alkoxy- mit 1 bis 4 Kohlenstoffatomen, Fluor-, Trifluormethyl- und/oder Trifluormethoxy-Reste bedeuten, indem man man Epoxide der Formel wobei R obige Bedeutung besitzt, in Gegenwart von Wasserstoff an Zeolithen und/oder Phosphaten, die mit Hydriermetallen dotiert sind, als Katalysatoren umsetzt. Vorzugsweise werden Zeolithe des Pentasiltyps verwendet. A process for the preparation of phenylethanols of the formula in which R denotes hydrogen, alkyl radicals having 1 to 4 carbon atoms, alkoxy radicals having 1 to 4 carbon atoms, fluorine radicals, trifluoromethyl radicals and/or trifluoromethoxy radicals, by reacting epoxides of the formula in which R has the above meaning, in the presence of hydrogen on zeolites and/or phosphates, which are doped with hydrogenation metals, as catalysts. Zeolites of the pentasil type are preferably used.