Nitric Acid → HCID 19034857, compound

HRID 1641473Notes

Reaction equation

HRID 1641473 reaction equation
N[C:2]1[C:3]([NH2:14])=[C:4]([N+:11]([O-:13])=[O:12])[C:5]([N+]([O-])=O)=[N:6][CH:7]=1.N[C:16]1[CH:21]=[CH:20][C:19]([N+]([O-])=O)=[C:18]([N+:25]([O-:27])=[O:26])[C:17]=1[NH2:28].NC1C=CC=CN=1.NC1C=CC=CC=1.[OH:43][S:44](O)(=[O:46])=[O:45].[O:48]=[S:49](=[O:51])=[O:50].[N+]([O-])(O)=O>>[NH2:14][C:3]1[CH:2]=[CH:7][N:6]=[C:5]([S:44]([OH:46])(=[O:45])=[O:43])[C:4]=1[N+:11]([O-:13])=[O:12].[NH2:28][C:17]1[C:18]([N+:25]([O-:27])=[O:26])=[C:19]([S:49]([OH:51])(=[O:50])=[O:48])[CH:20]=[CH:21][CH:16]=1

Participants

8

Reactant 6

HCID 944Nitric Acid2×HCID 6115Aniline2×HCID 104392-Aminopyridine2×HCID 24681Fuming sulfuric acidHCID 22226304HCID 22226304, compoundHCID 86630726HCID 86630726, compound

Product 2

HCID 19034857HCID 19034857, compoundHCID 221460513-Amino-2-nitrobenzene-1-sulfonic acid

Procedure

The present invention comprises a process for the preparation of 1) diaminodinitropyridine or 2) diaminodinitrobenzene by contacting 1) an aminopyridine or 2) an aminobenzene, respectively, with oleum and nitric acid, wherein the improvement comprises adding at least about 1% molar excess of nitric acid based upon the aminopyridine or aminobenzene respectively, with stirring for at least two hours to form first 1) aminonitropyridine sulfonic acid or 2) aminonitrobenzene sulfonic acid, respectively, and then 1) diaminodinitropyridine or 2) diaminodinitrobenzene respectively.

Sources & evidence

ORD record
ord-fd392b602278403ab168bc483df5eb2c
Source dataset
uspto-grants-2012_02
Patent number
US08115007B2

Reaction notes

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