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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 328980Generated: October 25, 2026

Acetic Acid → 5-(2-Carboxy-4-methoxybenzylidene)rhodanine

https://huagongshe.com/reaction/328980

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantSodium AcetateHCID 517045—
ReactantRhodanineHCID 1201546—
Reactant2-Formyl-5-methoxybenzoic acidHCID 7176205—
SolventWaterHCID 962—
Product5-(2-Carboxy-4-methoxybenzylidene)rhodanineHCID 53722834—

Reaction Steps

To a hot stirred solution of 0.90 g. (5.0 mM) of 5-methoxyphthalaldehydic acid and 0.67 g. (5.0 mM) of rhodanine in 4 ml. of acetic acid is added 1.35 g. (16.4 mM) of anhydrous sodium acetate. After refluxing 0.5 hour, the solid yellow mass is cooled, poured into water, and filtered to separate 5-(2-carboxy-4-methoxybenzylidene)rhodanine as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04018891
Source datasetuspto-grants-1977_04
ORD IDord-78b68e9300d342368e5c865e380744f2
Source noteuspto-grants-1977_04