HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 977197Generated: October 26, 2026
Piperidine → 5-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]-2-thioxothiazolidin-4-one
https://huagongshe.com/reaction/977197
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | Rhodanine | HCID 1201546 | — |
| Reactant | 3,4-Dihydroxy-5-nitrobenzaldehyde | HCID 5748957 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 5-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]-2-thioxothiazolidin-4-one | HCID 53862151 | — |
Reaction Steps
A solution containing 2.1 g (0.0157 mol) of rhodanine, 2.76 g (0.0151 mol) of 3,4-dihydroxy-5-nitrobenzaldehyde and 0.15 ml of piperidine in 10 ml of acetic acid was heated for 7-8 h at 100° C. After cooling the crystals were filtered and washed with 2-propanol. Yield 4.0 g (89%), mp >350° C. (decomp.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05614541 |
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| Source dataset | uspto-grants-1997_03 |
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| ORD ID | ord-66addbede7dd4f95a1f4c797e968fe42 |
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| Source note | uspto-grants-1997_03 |
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