Methane → 4-Sulfobenzenediazonium hydroxide
Reaction equation
[S:1]([OH:11])(=[O:10])([C:3]1[CH:8]=[CH:7][C:6]([NH2:9])=[CH:5][CH:4]=1)=[O:2].C.C1C(Br)=C(Br)[NH:15]C=1C(O)=O.[N+]([O-])(O)=O.N([O-])=O.[Na+]>O>[OH-:2].[S:1]([C:3]1[CH:4]=[CH:5][C:6]([N+:9]#[N:15])=[CH:7][CH:8]=1)([OH:11])(=[O:10])=[O:2]Participants
7
Reactant 5
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 43 g of sulfanilic acid in 2 L of water at about 75° C. was added to 202 g of a carbon black having a surface area of 230 m2 /g and a DBPA of 70 ml/100 g with stirring. The stirring mixture was allowed to cool to room temperature, and 26.2 g of concentrated nitric acid was added. A solution of 20.5 g of NaNO2 in water was added. 4-Sulfobenzenediazonium hydroxide inner salt is formed, which reacts with the carbon black. The dispersion was stirred until the resulting bubbling stopped. After drying at 70° C., the product was washed with methanol and dried in an oven at 90° C. The product has attached p-C6H4SO3- groups.
Sources & evidence
- ORD record
- ord-ad98818c58ed46cc8af9c618a5c7d313
- Source dataset
- uspto-grants-1997_05
- Patent number
- US05630868
Reaction notes
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