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

HRID 903524Notes

Reaction equation

HRID 903524 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.

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-3f46446a15a84148b7645cc88a2f6abd
Source dataset
uspto-grants-1980_10
Patent number
US04228073

Reaction notes

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