Process for preparing partially fluorinated tetracarboxylic acids.
摘要
Process for preparing a compound of the formula <IMAGE> in which X denotes the groups <IMAGE> by atmospheric oxidation of an appropriate tetramethyl compound in acidic medium at elevated pressure and elevated temperature in the presence of a catalyst mixture, or its anhydride.
申请公布号
EP0483106(A2)
申请公布日期
1992.04.29
申请号
EP19920100514
申请日期
1988.11.17
申请人
HOECHST AKTIENGESELLSCHAFT
发明人
ROEHRSCHEID, FREIMUND, DR.;SIEGEMUND, GUENTER, DR.;LAU, JUERGEN, DR.
