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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068752Generated: October 30, 2026

Triethylamine → HCID 21190217, compound

https://huagongshe.com/reaction/1068752

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPropanoic acid, 2,2,3,3,3-pentafluoro-, ethyl esterHCID 67928—
Reactant3-Methyl-1-[5-(amino)pentyl]-1,4,7b-triazacyclopent[cd]inden-2-oneHCID 21190111—
SolventAcetonitrileHCID 6342—
ProductHCID 21190217HCID 2119021750.5%

Reaction Steps

To a solution of 2.58 g (10.0 mmol) of 3-methyl-1-[5-(amino)pentan-1-yl]-1,4,7b-triazacyclopent[cd]inden-2-one and 1.81 ml (13.0 mmol) of triethylamine in 100 ml of acetonitrile was added, while stirring at room temperature, 2.31 g (12.0 mmol) of pentafluoropropionic acid ethyl ester. The mixture was stirred for 4 hours at the same temperature. The solvent was distilled off. To the residue was added methylene chloride, and the mixture was washed with water, and dried over anhydrous magnesium sulfate. The solvent was distilled off, and the residue was purified by column chromatography (eluent: ethyl acetate) to afford 2.04 g of the desired compound (50.4%, a pale yellow solid).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251905B1
Source datasetuspto-grants-2001_06
ORD IDord-c52cf8270543490382952250a20eaf4e
Source noteuspto-grants-2001_06