Cl[C:2]1[CH:3]=[CH:4][C:5]([N+:16]([O-:18])=[O:17])=[C:6]([NH:8][C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[CH3:15])[CH:7]=1.[Na].[CH3:20][OH:21]>>[CH3:20][O:21][C:2]1[CH:3]=[CH:4][C:5]([N+:16]([O-:18])=[O:17])=[C:6]([NH:8][C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[CH3:15])[CH:7]=11 g of 5-chloro-2-nitrophenyl-o-tolylamine was added to a solution of 1 g of sodium in 20 ml of methanol, and it was refluxed for 72 hours. Then, it is cooled to 0° C., and the crystalline product is suctioned off.
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