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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1420089Generated: October 26, 2026

Piperidine → 5-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]-4-thioxothiazolidin-2-one

https://huagongshe.com/reaction/1420089

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant4-Sulfanylidene-1,3-thiazolidin-2-oneHCID 1539595—
Reactant3,4-Dihydroxy-5-nitrobenzaldehydeHCID 5748957—
SolventAcetic acid 10-acetoxymethyl-anthracen-9-ylmethyl esterHCID 613145—
Product5-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]-4-thioxothiazolidin-2-oneHCID 136058947—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution containing 0.67 g (0.005 mol) of 4-thioxothiazolidin-2-one, 0.92 g (0.005 mol) of 3,4-dihydroxy -5-nitrobenzaldehyde and 0.05 ml of piperidine in 10 ml of acetic was heated for 8 h at 100° C. The product was filtered and washed with 2-propanol. Yield 1.14 g (76.5%), mp>350° C. (decomp.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05889037
Source datasetuspto-grants-1999_03
ORD IDord-6185976327e54f4fbe28a6edfd87870e
Source noteuspto-grants-1999_03