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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1853625Generated: November 1, 2026

Potassium Carbonate → HCID 60795277, compound

https://huagongshe.com/reaction/1853625

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 numberUS08962635B2
Source datasetuspto-grants-2015_02
ORD IDord-51c34012a8114a0da080e9bdc529ece7
Source noteuspto-grants-2015_02