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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1954205Generated: October 25, 2026

Thiazolidinedione → 5-[(3,4-Dihydroxy-5-chlorophenyl)methylidene]-thiazolidin-2,4-dione

https://huagongshe.com/reaction/1954205

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThiazolidinedioneHCID 5437—
ReactantPiperidineHCID 8082—
Reactant3-Chloro-4,5-dihydroxybenzaldehydeHCID 2468182—
SolventAcetic AcidHCID 176—
Product5-[(3,4-Dihydroxy-5-chlorophenyl)methylidene]-thiazolidin-2,4-dioneHCID 54030399—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution containing 1.33 g of thiazolidine-2,4-dione, 1.72 g of 3,4-dihydroxy-5-chlorobenzaldehyde and 2 ml of piperidine in 20 ml of acetic acid was heated for five hours at 100° C. Yield 1.9 g (70%), mp 299-301° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06121303
Source datasetuspto-grants-2000_09
ORD IDord-e21d97fe0cbd400db77dd2298a18e67d
Source noteuspto-grants-2000_09