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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2082333Generated: October 31, 2026

Propylamine → HCID 19778147, compound

https://huagongshe.com/reaction/2082333

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropylamineHCID 7852—
ReactantTriethylamineHCID 8471—
ReactantEthyl (E)-4-bromobut-2-enoateHCID 5373944—
SolventEthanolHCID 702—
ProductHCID 19778147HCID 19778147—

Reaction Steps

Ethyl 4-bromocrotonate (21.4 g) was added dropwise to a solution of n-propylamine (11.8 g) and triethylamine (20.2 g) in ethanol (80 ml) at 0° C. under stirring and taking 1.5 hours, followed by stirring for 0.5 hours at room temperature. After removing the solvent, to the residue was added ethyl acetate, and the mixture was extracted with 1N hydrochloric acid. The extract was alkalified with potassium carbonate powder and extracted with ethyl acetate. The extract was washed with water, dried over anhydrous sodium sulfate and distilled to remove the solvent to give 13.5 of the title compound as pale yellow oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05189043
Source datasetuspto-grants-1993_02
ORD IDord-56987a314cd641088d2692d5b9daed6e
Source noteuspto-grants-1993_02