Nitric Acid → 4-Nitrotoluene

HRID 363994

Reaction equation

HRID 363994 reaction equation
[N+:1]([O-:4])(O)=[O:2].[N+]([C:8]1[C:9]([N+]([O-])=O)=[C:10]([CH3:14])[CH:11]=[CH:12][CH:13]=1)([O-])=O>C1(C)C=CC=CC=1>[N+:1]([C:13]1[CH:12]=[CH:11][C:10]([CH3:14])=[CH:9][CH:8]=1)([O-:4])=[O:2]

Participants

4

Reactant 2

HCID 944Nitric AcidHCID 117612,3-Dinitrotoluene

Product 1

HCID 74734-Nitrotoluene

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

Commercially, nitroaromatics, and particularly dinitrotoluene, are produced by the mixed acid nitration of toluene, the mixed acid being a mixture of concentrated sulfuric and concentrated nitric acid. In the production of dinitrotoluene process, for example, toluene is first nitrated to form mononitrotoluene and then separated from the spent acid aqueous phase. The crude mononitrotoluene is then dinitrated with fresh acid in a second nitration stage. As is known the dinitrotoluene product recovered from the dinitration reactor contains impurities, primarily nitrophenolics, such as nitrocresol and picric acid.

Sources & evidence

ORD record
ord-941078a6f7ec4480a40d69fbb9055b3f
Source dataset
uspto-grants-1986_08
Patent number
US04604214

Linked notes

Loading…