Phenol, 2-(2H-benzotriazol-2-yl)-4-(1,1-dimethylethyl)- → 3,3'-bis-(2H-benzotriazol-2-yl)-5,5'-di-tert-butyl-1,1'-biphenyl-2,2'-diol
Reaktionsgleichung
[N:1]1[N:2]([C:10]2[CH:15]=[C:14]([C:16]([CH3:19])([CH3:18])[CH3:17])[CH:13]=[CH:12][C:11]=2[OH:20])[N:3]=[C:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12>C(Cl)Cl>[N:1]1[N:2]([C:10]2[CH:15]=[C:14]([C:16]([CH3:17])([CH3:19])[CH3:18])[CH:13]=[C:12]([C:12]3[C:11]([OH:20])=[C:10]([N:2]4[N:3]=[C:4]5[CH:9]=[CH:8][CH:7]=[CH:6][C:5]5=[N:1]4)[CH:15]=[C:14]([C:16]([CH3:17])([CH3:19])[CH3:18])[CH:13]=3)[C:11]=2[OH:20])[N:3]=[C:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Anhydrous ferric chloride (6.44 g, 0.038 mol) was added over a period of 30 minutes to a methylene chloride (300 ml) solution of 2-(2H-benzotriazol-2-yl)-4-tert-butyl-phenol (5.3 g, 0.019 mol) known as TINUVIN® PS Light Stabilizer, a product of CIBA SPECIALTIES, Hawthorne, N.Y. The resulting mixture was stirred at room temperature for 6 hours. After filtering over diatomaceous earth, the filtrate was extracted with dilute hydrochloric acid, washed with water and dried. Evaporation of the solvent gave 3,3′bis-(2H-benzotriazol-2-yl)-5,5′-di-tert-butyl-1,1′-biphenyl-2,2′-diol (COMPOUND 2) as a white powder; m.p. 234° C.