HCID 135970814、化合物 → 2-(5-chloro-2H-benzotriazole-2-yl)-4-(2-hydroxyethyl)phenol
反応式
[OH:1][CH2:2][CH2:3][C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[C:6]([N:11]=[N:12][C:13]2[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=2[N+:20]([O-])=O)[CH:5]=1>[OH-].[Na+].[Zn]>[Cl:19][C:16]1[CH:17]=[CH:18][C:13]2=[N:12][N:11]([C:6]3[CH:5]=[C:4]([CH2:3][CH2:2][OH:1])[CH:9]=[CH:8][C:7]=3[OH:10])[N:20]=[C:14]2[CH:15]=1参加物
4
実験手順
5.91 g (18 mmols) of crude 4-(2-hydroxyethyl)-2-[(4-chloro-2-nitrophenyl)azo]phenol synthesized in Example 4 was dissolved in 18 ml of aqueous solution of 2N sodium hydroxide. Subsequently, 9 ml of previously prepared aqueous solution of 25% sodium hydroxide and 5.4 g (83 mmols) of zinc powder were simultaneously added over a period of about 3 hours. The subsequent treatment was carried out in the same manner as in Example 6, giving 4.02 g of 2-(5-chloro-2H-benzotriazole-2-yl)-4-(2-hydroxyethyl)phenol as pale yellow crystals (yield 68%, purity 88%).