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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 397404Generated: October 28, 2026

1,2-Dichloroethane → HCID 22390967, compound

https://huagongshe.com/reaction/397404

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-MethylpiperazineHCID 53167—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantSodium BicarbonateHCID 516892—
Reactant3-(5-Formyl-4-methyl-1H-pyrrol-2-yl)propanoic acidHCID 22390993—
SolventDimethylformamideHCID 6228—
ProductHCID 22390967HCID 2239096782.3%

Reaction Steps

To a solution of 3-(5-formyl-4-methyl-1H-pyrrol-2-yl)-propionic acid (271.8 mg, 1.5 mmol) in DMF (4mL) was added HOBt (243.2 mg, 1.8 mmol), EDC (345.1 mg, 1.8 mmol) and then 1-methylpiperazine (0.2 mL, 1.8 mmol). The mixture was stirred at room temperature under nitrogen for overnight. The reaction was poured into sat. sodium bicarbonate (50 mL) and extracted with ethyl acetate. The combined organic layer was dried, concentrated and column chromatographed (MeOH/DCM) to give 325.2 mg (82%) of 3-methyl-5-[3-(4-methyl-piperazin-1-yl)-3-oxo-propyl]-1H-pyrrole-2-carbaldehyde as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06610688B2
Source datasetuspto-grants-2003_08
ORD IDord-c3adb884430c443a86d56d88c56576a5
Source noteuspto-grants-2003_08