Process for the preparation of alkylbenzenes substituted by radicals containing fluorine.

摘要

1. Process for the preparation of aromatic compounds, which are substituted by radicals containing fluorine, of the formula see diagramm : EP0084128,P11,F1 in which R**1 represents a CF3 or CF3 O radical or, together with R**2, forms an -OCF2 O-, -O-CHF-CF2 -O-, -O-CF2 CFCl-O- or -O-CF2 -CF2 -O- group, R**2, R**3 and R**4 are the same or different and denote hydrogen, halogen, hydroxyl, alkyl, aryl, alkoxy or aroxy and R**5 represents an optionally substituted alkyl radical, characterized in that aromatic compounds of the formula. see diagramm : EP0084128,P11,F2 in which R**6 represents a CF3 , CF2 Cl, CCl2 F, CCl3 or CF3 O radical or, together with R**2, forms an -OCF2 0-, -O-CHF-CF2 -O-, -O-CF2 CFCl-O- or -O-CF2 -CF2 -O-group, and R**2, R**3 and R**4 have the abovementioned meaning, are reacted with an alkylation agent in the presence of hydrogen fluoride in the temperature range from O to 1508C.