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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26122Generated: October 31, 2026

Thionyl Chloride → alpha-(2-Acetoxy-5-chlorosulfonylphenylazo)acetoacetanilide

https://huagongshe.com/reaction/26122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactantalpha-(2-Acetoxy-5-sulfophenylazo)acetoacetanilideHCID 23336111—
SolventDimethylformamideHCID 6228—
Productalpha-(2-Acetoxy-5-chlorosulfonylphenylazo)acetoacetanilideHCID 23336104—

Reaction Steps

α-(2-Acetoxy-5-sulfophenylazo)acetoacetanilide (20 g) was added to thionyl chloride (100 ml). After the addition of dimethylformamide (4 ml), solution was complete, then followed by precipitation of the product. It was filtered off and dried in the vacuum oven at 40° C. Yield: 16.7 g, m.p. 225° to 226° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148643
Source datasetuspto-grants-1979_04
ORD IDord-cf01d4de27e3487eac128ffce1345f33
Source noteuspto-grants-1979_04