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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1187648Generated: November 1, 2026

Potassium Carbonate → HCID 60795277, compound

https://huagongshe.com/reaction/1187648

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantPropanoic acid, 2-bromo-2-methyl-, ethyl esterHCID 11745—
ReactantCyclopropylamineHCID 69828—
SolventAcetonitrileHCID 6342—
ProductHCID 60795277HCID 6079527746.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a 250 mL of sealed tube was added ethyl 2-bromo-2-methylpropanoate (19.4 g, 0.1 mol, 1.0 equiv), cyclopropanamine (11.4 g, 0.2 mol, 2.0 equiv), K2CO3 (27.6 g, 0.2 mol, 2.0 equiv), KI (1.66 g, 0.01 mol, 0.1 equiv) and 200 mL of MeCN. The mixture was stirred at 100° C. for 12 h then cooled to room temperature and the solids were filtered. The filtrate was concentrated and purified on silica gel column eluting with pet. ether/ethyl acetate=4/1 to give 8.0 g (46%) of ethyl 2-(cyclopropylamino)-2-methylpropanoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673925B1
Source datasetuspto-grants-2014_03
ORD IDord-65832dd9e5ed447da552c26450237ad4
Source noteuspto-grants-2014_03