Acetic Anhydride → alpha-(2-Acetoxy-5-sulfophenylazo)acetoacetanilide

HRID 2052199Notes

Reaction equation

HRID 2052199 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([OH:11])(=[O:10])=[O:9])=[CH:4][C:3]=1[N:12]=[N:13][CH:14]([C:24]([CH3:26])=[O:25])[C:15]([NH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)=[O:16].[C:27](OC(=O)C)(=[O:29])[CH3:28]>N1C=CC=CC=1>[C:27]([O:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([OH:11])(=[O:10])=[O:9])=[CH:4][C:3]=1[N:12]=[N:13][CH:14]([C:24]([CH3:26])=[O:25])[C:15]([NH:17][C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1)=[O:16])(=[O:29])[CH3:28]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 135839437alpha-(2-Hydroxy-5-sulfophenylazo)acetoacetanilide

Product 1

HCID 23336111alpha-(2-Acetoxy-5-sulfophenylazo)acetoacetanilide

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

α-(2-hydroxy-5-sulfophenylazo)acetoacetanilide (40 g) was dissolved in boiling pyridine (750 ml) and acetic anhydride (100 ml) added. Some material precipitated while the reaction mixture was hot. After being cooled, the product was filtered off and dried. Yield: 38 g.

Workup

  1. additionadded
  2. customSome material precipitated while the reaction mixture
  3. temperatureAfter being cooled
  4. filtrationthe product was filtered off
  5. customdried

Sources & evidence

ORD record
ord-dc614a1fcf76419a9bcd9dce6a459e38
Source dataset
uspto-grants-1980_01
Patent number
US04183755

Reaction notes

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