HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860250Generated: November 3, 2026
Pyrrole-2-carboxaldehyde → HCID 9921396, compound
https://huagongshe.com/reaction/1860250
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyrrole-2-carboxaldehyde | HCID 13854 | — |
| Reactant | HCID 18626983 | HCID 18626983 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Solvent | Piperidine | HCID 8082 | — |
| Product | HCID 9921396 | HCID 9921396 | 34% |
Reaction Steps
5,6-Dihydro-5-oxo-4H-thieno[2,3-b]pyrrole-2-carboxamide (30 mg, 0.17 mmol) was dissolved in a solution of 1% piperidine in 2-propanol (2 ml). Pyrrole-2-carboxaldehyde (16 mg, 0.18 mmol) was added in one portion and the mixture heated at 75° C. for 1 hour. The reaction mixture was poured into an ice/water mixture (10 ml) and the precipitated solid was collected by filtration and washed with water to give 15 mg of (Z)-5,6-dihydro-5-oxo-4-[(1H-pyrrol-2-yl)methylene]-4H-thieno[2,3-b]pyrrole-2-carboxamide as a yellow/brown solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06528653B2 |
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| Source dataset | uspto-grants-2003_03 |
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| ORD ID | ord-8b5fb51f5d0f406c9f50f0e68870f86a |
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| Source note | uspto-grants-2003_03 |
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