2-((2-Nitrophenyl)azo)-4-(1,1,3,3-tetramethylbutyl)phenol → Octrizole

HRID 2166261Notes

Reaction equation

HRID 2166261 reaction equation
[N+](C1C=CC=CC=1N=NC1C=C(C(CC)(C)C)C=C(C(CC)(C)C)C=1O)([O-])=O.[N+:29]([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=1[N:38]=[N:39][C:40]1[CH:45]=[C:44]([C:46]([CH2:49][C:50]([CH3:53])([CH3:52])[CH3:51])([CH3:48])[CH3:47])[CH:43]=[CH:42][C:41]=1[OH:54])([O-])=O>>[OH:54][C:41]1[CH:42]=[CH:43][C:44]([C:46]([CH2:49][C:50]([CH3:53])([CH3:52])[CH3:51])([CH3:48])[CH3:47])=[CH:45][C:40]=1[N:39]1[N:38]=[C:33]2[CH:34]=[CH:35][CH:36]=[CH:37][C:32]2=[N:29]1

Participants

3

Reactant 2

HCID 1039272-((2-Nitrophenyl)azo)-4-(1,1,3,3-tetramethylbutyl)phenolHCID 1041112-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene

Product 1

HCID 62485OctrizoleYield 83.7%

Procedure

The same procedure as in Example 9 was repeated, except that 2-nitro-2'-hydroxy-3',5'-di-t-amylazobenzene 25.5 g was replaced by 2-nitro-2'-hydroxy-5'-t-octylazobenzene 23.7 g. Thus, after recovering the catalyst, the remaining material was washed with methanol to produce 18.0 g of 2-(2-hydroxy-5-t-octylphenyl)benzotriazole having a melting point of 103° to 105° C. at the yield of 83.7%.

Workup

  1. customThus, after recovering the catalyst
  2. washthe remaining material was washed with methanol

Sources & evidence

ORD record
ord-8464841f43fd4384b1ec111ca0639f31
Source dataset
uspto-grants-1990_07
Patent number
US04943637

Reaction notes

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