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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26123Generated: October 27, 2026

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

https://huagongshe.com/reaction/26123

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactantalpha-(2-Hydroxy-5-sulfophenylazo)acetoacetanilideHCID 135839437—
SolventPyridineHCID 1049—
Productalpha-(2-Acetoxy-5-sulfophenylazo)acetoacetanilideHCID 23336111—

Reaction Steps

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.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148643
Source datasetuspto-grants-1979_04
ORD IDord-aa9b866870224e65919dae7971919537
Source noteuspto-grants-1979_04