Tert-Butyl nitrite → 5-[4-(2,2,6,6-Tetramethylpiperidin-1-yloxy)-phenyl]-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole

HRID 1761315

Reaktionsgleichung

Reaktionsgleichung von HRID 1761315
[OH:1][N:2]1[C:7]([CH3:9])([CH3:8])[CH2:6][CH2:5][CH2:4][C:3]1([CH3:11])[CH3:10].N(OC(C)(C)C)=O.N[C:20]1[CH:25]=[CH:24][C:23]([C:26]2[CH:58]=[CH:57][C:29]3=[N:30][N:31]([C:33]4[CH:38]=[C:37]([C:39]([CH2:42][C:43]([CH3:46])([CH3:45])[CH3:44])([CH3:41])[CH3:40])[CH:36]=[C:35]([C:47]([C:50]5[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=5)([CH3:49])[CH3:48])[C:34]=4[OH:56])[N:32]=[C:28]3[CH:27]=2)=[CH:22][CH:21]=1>N1C=CC=CC=1>[CH3:10][C:3]1([CH3:11])[CH2:4][CH2:5][CH2:6][C:7]([CH3:9])([CH3:8])[N:2]1[O:1][C:20]1[CH:21]=[CH:22][C:23]([C:26]2[CH:58]=[CH:57][C:29]3=[N:30][N:31]([C:33]4[CH:38]=[C:37]([C:39]([CH2:42][C:43]([CH3:44])([CH3:45])[CH3:46])([CH3:41])[CH3:40])[CH:36]=[C:35]([C:47]([C:50]5[CH:51]=[CH:52][CH:53]=[CH:54][CH:55]=5)([CH3:48])[CH3:49])[C:34]=4[OH:56])[N:32]=[C:28]3[CH:27]=2)=[CH:24][CH:25]=1

Komponenten

5

Edukt 3

HCID 10906Tert-Butyl nitriteHCID 5499762,2,6,6-Tetramethylpiperidin-1-olHCID 225950335-(4-aminophenyl)-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole

Produkt 1

HCID 101464885-[4-(2,2,6,6-Tetramethylpiperidin-1-yloxy)-phenyl]-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazoleAusbeute 87,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel2×

Versuchsvorschrift

The title compound is prepared reacting 0.59 g (3.75 mmol) of 1-oxyl-2,2,6,6-tetramethylpiperidine, 1.0 g (10 mmol) of tert-butyl nitrite, 2.3 mg (0.0037 mmol) of (S,S)-(+)-N,N-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt(II), 120 mL of pyridine and 24.0 g (75 mmol) of 5-(4-aminophenyl)-2-(2-hydroxy-3-α-cumyl-5-tert-octylphenyl)-2H-benzotriazole, prepared in Example 17, in 10 mL of pyridine at 70° C. The crude product obtained is purified by vacuum flash chromatography (2% ethyl acetate/heptane) to give 2.20 g of the title compound as a colorless oil in 87.3% yield. M/S [M+1]673.

Aufarbeitung

  1. customThe crude product obtained

Quellen und Nachweise

ORD-Eintrag
ord-4c4d5fb0cde64555b967b9c6646de9dd
Quelldatensatz
uspto-grants-2005_01
Patentnummer
US06846929B2

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