4-Nitro-1,1'-biphenyl → 4-Nitrobiphenylsulfonic acid
Reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2].Cl[S:17]([OH:20])(=[O:19])=[O:18]>C(Cl)(Cl)Cl>[N+:1]([C:4]1[CH:5]=[C:6]([S:17]([OH:20])(=[O:19])=[O:18])[C:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:8][CH:9]=1)([O-:3])=[O:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 60 °C
Procedure
To a stirred solution of 4-nitrobiphenyl (50.00 g, 0.25 mol) in chloroform (750 mL) was added dropwise at room temperature chlorosulfonic acid (17 mL, 0.3 mol). The reaction mixture was stirred at 60° C. for 6 h. The white precipitate formed was collected by filtration and washed with cold chloroform. The product was air dried to give 31.00 g of 4-nitrobiphenylsulfonic acid (Yield 61%).