VERFAHREN ZUR HERSTELLUNG VON ALKANSULFONYLBENZOESAEUREN

摘要

A process for the production of alkane sulphonyl benzoic acids in which alkane sulphonyl alkyl benzoles of the formula (I) in which R<1> and R<2> are the same or different and are alkyl with 1 to 4 C atoms, but R<2> is not t-butyl, and X stands for H, F, Cl, Br or NO2, are oxidised under high pressure at temperatures of over 120 DEG C with molecular oxygen in acetic and/or propionic acid in the presence of a catalyst soluble therein containing cobalt and bromine ions, and if R<2> is not methyl, manganese ions as well.