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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 406332Generated: October 30, 2026

Cyanamide → HCID 66779286, compound

https://huagongshe.com/reaction/406332

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanamideHCID 9864—
ReactantSodium BicarbonateHCID 516892—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantHCID 66633947HCID 66633947—
SolventEthanolHCID 702—
SolventTriethylamineHCID 8471—
SolventEthyl AcetateHCID 8857—
ProductHCID 66779286HCID 6677928624.5%

Reaction Conditions

Temperature80 °C

Reaction Steps

1-Amino-3-(2-trifluoromethylbenzyl)piperidin-2-one (916 mg) and cyanamide (849 mg) were dissolved in ethanol (15 mL). p-Toluenesulfonic acid monohydrate (961 mg) was added and the mixture was heated under reflux at 80° C. for 3.5 hours. After cooling to room temperature, triethylamine (2.3 mL) was added and the mixture was further heated under reflux at 80° C. for four days. A sodium bicarbonate solution and ethyl acetate were added to the reaction solution, and the organic layer was separated. The resulting organic layer was washed with brine and then dried over anhydrous sodium sulfate. The drying agent was separated by filtration and then the organic layer was concentrated under reduced pressure. The resulting solid was washed with ethyl acetate to obtain the title compound (244 mg). The property values of the compound are as follows.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08754100B2
Source datasetuspto-grants-2014_06
ORD IDord-6f4bb71ed63740308333d06bf8bcd7c6
Source noteuspto-grants-2014_06