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

HRID 1699108

Reaktionsgleichung

Reaktionsgleichung von HRID 1699108
[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]=12

Komponenten

3

Edukt 1

HCID 76605Phenol, 2-(2H-benzotriazol-2-yl)-4-(1,1-dimethylethyl)-

Produkt 1

HCID 1356276063,3'-bis-(2H-benzotriazol-2-yl)-5,5'-di-tert-butyl-1,1'-biphenyl-2,2'-diol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

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.

Aufarbeitung

  1. filtrationAfter filtering over diatomaceous earth
  2. extractionthe filtrate was extracted with dilute hydrochloric acid
  3. washwashed with water
  4. customdried
  5. customEvaporation of the solvent

Quellen und Nachweise

ORD-Eintrag
ord-0db7d38b18fd448ab3e146a375d55915
Quelldatensatz
uspto-grants-2002_02
Patentnummer
US06344505B1

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