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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 853037Generated: November 1, 2026

Potassium Carbonate → HCID 69414322, compound

https://huagongshe.com/reaction/853037

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl bromoacetateHCID 60984—
ReactantHCID 69415545HCID 69415545—
SolventAcetonitrileHCID 6342—
ProductHCID 69414322HCID 6941432264.9%

Reaction Steps

(10aR)-9-Bromo-1,2,3,4,10,10a-hexahydro-pyrazino[1,2-a]indole (0.07 g, 0.27 mmol) and methyl bromoacetate (43 mg, 0.27 mmol) were dissolved in acetonitrile (2 mL). Potassium carbonate (44 mg, 0.32 mmol) was added and the solution was boiled with stirring for 15 h. The solvent was removed and the residue was partitioned between dichloromethane and brine. Organic phases were pooled, dried with MgSO4 and the solvent was evaporated. Chromatography on silica gel (dichloromethane/methanol 98:2) gave (10aR)-(9-bromo-3,4,10,10a-tetrahydro-1H-pyrazino[1,2-a]indol-2-yl)-acetic acid methyl ester (57 mg, 63%), MS: m/e=325.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07253281B2
Source datasetuspto-grants-2007_08
ORD IDord-0825b72cbc924f64869101155371d044
Source noteuspto-grants-2007_08