Process for producing 2,5-bis(trifluoromethyl)nitrobenzene

Details Process for producing 2,5-bis(trifluoromethyl)nitrobenzene Process for producing 2,5-bis(trifluoromethyl)nitrobenzene

2005-08-16

2005-08-16

Parsa, J. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S927000, C546S077000

Reexamination Certificate

active

06930214

ABSTRACT:
A process to produce 2,5-bis(trifluoromethyl)nitrobenzene in a high yield from an industrially easily available material by using a substance with which the reaction operation is simple and handling is easy, with a small number of steps under moderate reaction conditions, is provided. 1,4-bis(trifluoromethyl)benzene is nitrated by means of nitric acid in a solvent comprising as an essential component an acid selected from sulfuric acid having a sulfuric acid concentration of from 91 to 100 mass % and fuming sulfuric acid having a sulfur trioxide concentration of higher than 0 mass % and at most 20 mass %.

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