HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539094Generated: October 30, 2026
Pyrrole-2-Carboxylic Acid → HCID 67033510, compound
https://huagongshe.com/reaction/539094
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyrrole-2-Carboxylic Acid | HCID 12473 | — |
| Reactant | Potassium Phosphate, Tribasic | HCID 62657 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | HCID 65583853 | HCID 65583853 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Product | HCID 67033510 | HCID 67033510 | 65% |
Reaction Steps
A mixture of 4-(2-bromophenyl)oxazolidin-2-one (497 mg, 2.05 mmol), 1H-pyrrole-2-carboxylic acid (137 mg, 1.23 mmol), tert-butyl piperazine-1-carboxylate (765 mg, 4.11 mmol), copper(I) iodide (117 mg, 0.616 mmol) and K3PO4 (1.74 g, 8.21 mmol) in DMSO (15 mL) was heated at 90° C. for 8 hours. After cooling, the reaction mixture was partitioned between EtOAc and water. The aqueous layer was extracted with EtOAc. The combined organic layers were washed with brine, dried and concentrated. The residue was purified by column chromatography (hexane/EtOAc, 1:1) to give tert-butyl 4-(2-(2-oxooxazolidin-4-yl)phenyl)piperazine-1-carboxylate (462 mg, 65%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08865726B2 |
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| Source dataset | uspto-grants-2014_10 |
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| ORD ID | ord-c501edf387e14ec9aba9fb97444abd8e |
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| Source note | uspto-grants-2014_10 |
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