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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1926186Generated: October 27, 2026

Triethylamine → 5-(2-(9H-fluoren-9-ylidene)acetamido)pentanoic acid methyl ester

https://huagongshe.com/reaction/1926186

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant9H-Fluoren-9-ylideneacetic acidHCID 96792—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantMethyl 5-aminopentanoate hydrochlorideHCID 13672034—
ReactantHCID 178418300HCID 178418300—
SolventDimethylformamideHCID 6228—
SolventSodium chloride; waterHCID 57417360—
Product5-(2-(9H-fluoren-9-ylidene)acetamido)pentanoic acid methyl esterHCID 5797205382.9%

Reaction Steps

2-(9H-fluoren-9-ylidene)acetic acid (222 mg, 1 mmol) and 8 ml of DMF were stirred at room temperature while 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (394 mg, 2 mmol), hydroxybenzo-triazole (162 mg, 1.2 mmol), triethylamine (404 mg, 4 mmol) and 5-aminovaleric acid methyl ester hydrochloride (202 mg, 1.2 mmol) were added. The mixture was stirred for 24 hours at room temperature. The mixture was diluted with 400 mL of brine. The solids were collected by vacuum filtration, washed with water and dried under vacuum to give the title compound (278 mg, 68% yield) as a white solid. LC-MS (m/z) 336 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178577B2
Source datasetuspto-grants-2012_05
ORD IDord-a479601e4d144f0a8d5655deb5928ce7
Source noteuspto-grants-2012_05