Nitric Acid → 1,2-Dinitrobenzene

HRID 745140

Reaction equation

HRID 745140 reaction equation
[N+:1]([C:4]1[C:5]([N+:11]([O-:13])=[O:12])=[C:6]([CH3:10])[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2].[N+]([O-])(O)=O.S(=O)(=O)(O)O>>[N+:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[N+:11]([O-:13])=[O:12])([O-:3])=[O:2].[N+:1]([C:4]1[C:5]([N+:11]([O-:13])=[O:12])=[C:6]([CH3:10])[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2]

Participants

5

Reactant 3

HCID 944Nitric AcidHCID 1118Sulfuric AcidHCID 117612,3-Dinitrotoluene

Product 2

HCID 107071,2-DinitrobenzeneHCID 117612,3-Dinitrotoluene

Procedure

In the manufacture of nitroaromatics, particularly dinitrotoluene, the aromatic compound is contacted under liquid phase conditions with the mixture of concentrated nitric acid and sulfuric acid. In the production of nitroaromatics and particularly dinitrated products either dinitrobenzene or dinitrotoluene, some by-product nitrophenolic material is produced. This nitrophenolic material usually is in the form of nitrocresols either dinitro or trinitrocresol and picric acid. It is this product which is removed from the crude reaction product from the nitration reactors without creating an environmentally unacceptable stream.

Sources & evidence

ORD record
ord-566123d534a64c7eb2494011ce1c0f4e
Source dataset
uspto-grants-1986_07
Patent number
US04597875

Linked notes

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