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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrole-2-Carboxylic AcidHCID 12473—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
ReactantHCID 65583853HCID 65583853—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 67033510HCID 6703351065%

Reaction Conditions

Temperature90 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08865726B2
Source datasetuspto-grants-2014_10
ORD IDord-c501edf387e14ec9aba9fb97444abd8e
Source noteuspto-grants-2014_10