Method of making 1,1'-sulfonylbis[3-nitro-5-(trifluoromethyl)benzene]

摘要

Disclosed is a method of making 1,1'-sulfonylbis(3-nitro-5-(trifluoromethyl) benzene) by reacting dibenzotrifluoride sulfide with at least four equivalents of fuming nitric acid and at least four equivalents of fuming sulfuric acid at a temperature below 20 degrees C., until the sulfide link is oxidized to a sulfone link, then raising the temperature to above 20 degrees C. until the reaction is complete. Also disclosed is the preparation of 1,1'-sulfonylbis(3-nitro-(5-trifluoromethyl) benzenamine) by reducing the benzene compound.