H acid → 2-Aminobenzenesulfonic acid
Reaction equation
N[C:2]1[C:3]([NH2:12])=[C:4]([S:8]([OH:11])(=[O:10])=[O:9])[CH:5]=[CH:6][CH:7]=1.N1C(Cl)=NC(Cl)=NC=1Cl.NC1C2C(=CC(S(O)(=O)=O)=CC=2O)C=C(S(O)(=O)=O)C=1.NC1C=CC=CC=1N>>[NH2:12][C:3]1[CH:2]=[CH:7][CH:6]=[CH:5][C:4]=1[S:8]([OH:11])(=[O:9])=[O:10]Participants
5
Procedure
It is therefore possible, for example, to first acylate a diaminobenzenesulphonic acid with cyanuric chloride, to diazotise the resultant intermediate and to couple it in acid solution to the 1-amino-8-hydroxynaphthalene-3,6-disulphonic acid, to condense the resultant monoazo compound in twice the molar amount with a diaminobenzene and to couple two moles of a diazotised aminobenzenesulphonic acid to the disazo compound which has been formed.
Sources & evidence
- ORD record
- ord-e8f66d4b360442859962948b3a57cc8a
- Source dataset
- uspto-grants-1976_06
- Patent number
- US03966705
Reaction notes
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