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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1856217Generated: November 1, 2026

Hydrochloric Acid → (2-{4-[(1-Hydroxyethylidene)amino]benzene-1-sulfonyl}hydrazinylidene)acetic acid

https://huagongshe.com/reaction/1856217

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantGlyoxylic acid, monohydrateHCID 15620607—
ReactantHCID 86737152HCID 86737152—
SolventAcetonitrileHCID 6342—
Product(2-{4-[(1-Hydroxyethylidene)amino]benzene-1-sulfonyl}hydrazinylidene)acetic acidHCID 321926—

Reaction Steps

The subject compound is prepared using the general method of Example 1 except that 4.58 g (20 mmol) of glyoxylic acid p-acetamidobenzenesulfonylhydrazide was reacted with 2.4 g (26 mmol) of glyoxylic acid monohydrate in the presence of 1/2 cc conc. HCl and 200 cc acetonitrile. The desired product was obtained in a yield of 5.4 g, m.p. 136° (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04218465
Source datasetuspto-grants-1980_08
ORD IDord-cbcbf5377c674adf8ad789d2649b79d3
Source noteuspto-grants-1980_08