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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 585808Generated: October 30, 2026

Potassium Carbonate → HCID 69414322, compound

https://huagongshe.com/reaction/585808

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 numberUS06933387B2
Source datasetuspto-grants-2005_08
ORD IDord-5d85252190364059aa09ad14f13bff99
Source noteuspto-grants-2005_08