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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 577761Generated: October 29, 2026

Ethylamine → HCID 21691262, compound

https://huagongshe.com/reaction/577761

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamineHCID 6341—
ReactantTriethylamineHCID 8471—
ReactantCyclobutanecarbonyl chlorideHCID 78705—
SolventDichloromethaneHCID 6344—
ProductHCID 21691262HCID 21691262—

Reaction Conditions

Temperature22.5 °C

Reaction Steps

Cyclobutanecarbonyl chloride (4.0 mL, 35 mmol) was added slowly to an ice-cooled solution of ethylamine [20 mL, 2M solution in tetrahydrofuran (THF)] and triethylamine (4.85 mL, 35 mmol) in anhydrous methylene chloride (25 mL) at 0-5° C. under nitrogen. After stirring for 20 min the mixture was warmed to 20-25° C. and stirred for an additional 5-7 h. The reaction was quenched by pouring the mixture into 5-10% aqueous sodium bicarbonate. The organic layer was separated, washed with brine, dried over sodium sulfate, and the solvent was evaporated to give cyclobutanecarboxylic acid ethylamide as a pale yellow liquid, which solidified upon standing at RT.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040558B2
Source datasetuspto-grants-2015_05
ORD IDord-5680ec3638774ae7a65e79f632447132
Source noteuspto-grants-2015_05