Sodium Hydroxide → Drometrizole
Reaktionsgleichung
[OH:1][C:2]1[C:7](C(CC)(C)C)=[CH:6][C:5]([C:13](CC)(C)C)=[CH:4][C:3]=1[N:18]=[N:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[N+:26]([O-])=O.OC1C=CC(C)=CC=1N=NC1C=CC=CC=1[N+]([O-])=O.[OH-].[Na+].[N+](C1C=CC=CC=1N=NC1C=CC=CC=1)([O-])=O>>[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:13])=[CH:4][C:3]=1[N:18]1[N:19]=[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]2=[N:26]1Komponenten
5
Versuchsvorschrift
When in Example 1, the 2'-hydroxy-3',5'-di-tert-amyl-2-nitroazobenzene was replaced by an equivalent amount of 2'-hydroxy-5'-methyl-2-nitroazobenzene and the mole ratio of sodium hydroxide to o-nitroazobenzene intermediate was increased from 0.42/1 to 1.26/1, the reaction went rapidly to yield the product 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole.