Process for the preparation of bis(4-chlorophenyl) sulfone
 A process for the preparation of bis(4-chlorophenyl) sulfone, wherein sulfur trioxide, dimethyl sulfate and chlorobenzene are reacted with each in a single reaction at a temperature of from 50.degree. to 100.degree. C. 
BASF Aktiengesellschaft
C
C07C
inventional
Heinz Peter Michael
Eilingsfeld Neumann Stumpp