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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1851053Generated: October 31, 2026

Potassium Carbonate → HCID 60795277, compound

https://huagongshe.com/reaction/1851053

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 numberUS08957080B2
Source datasetuspto-grants-2015_02
ORD IDord-f95ef1af4e8c4fd5bc01299a0ac839b8
Source noteuspto-grants-2015_02