Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2379405Generated: October 27, 2026

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

https://huagongshe.com/reaction/2379405

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant3,4-Dihydroxy-5-nitrobenzaldehydeHCID 5748957—
Reactant2-Amino-1,3-thiazolidin-4-oneHCID 15292580—
SolventAcetic AcidHCID 176—
Product5-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]-2-aminothiazolidin-4-oneHCID 54403327—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution containing 0.58 g (0.005 mol) of 2-aminothiazolidin-4-one, 0.92 g (0.005 mol) of 3,4-dihydroxy-5-nitrobenzaldehyde and 0.05 ml of piperidine in 5 ml of acetic acid was heated for 24 h at 100° C. The product was filtered and washed with ethanol. Yield 1.2 g (86%), mp 250° C. (decomp.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05362733
Source datasetuspto-grants-1994_11
ORD IDord-f7072a42c4f8411faf1bd02faf66723e
Source noteuspto-grants-1994_11