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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1884148Generated: October 31, 2026

Hydrochloric Acid → Cyclopropane-1,1-dicarboxylic acid amide [2-fluoro-4-(4-fluoro-benzyloxy)-phenyl]-amide

https://huagongshe.com/reaction/1884148

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant1-(Aminocarbonyl)-1-cyclopropanecarboxylic acidHCID 2733272—
Reactant2-Fluoro-4-(4-fluoro-benzyloxy)-phenylamineHCID 22137885—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductCyclopropane-1,1-dicarboxylic acid amide [2-fluoro-4-(4-fluoro-benzyloxy)-phenyl]-amideHCID 1038296738%

Reaction Steps

A mixture of 2-fluoro-4-(4-fluoro-benzyloxy)-phenylamine (1:1) hydrochloride (272 mg, 1 mmol), 1-carboxycyclopropanecarboxamide (129 mg, 1 mmol), N-(3-dimethylaminopropyl)-N′ethylcarbodiimide hydrochloride (EDCI, 211 mg, 1.1 mmol) and triethylamine (111 mg, 1.1 mmol) in DCM (7 mL) was stirred at rt for 2 h. Then the mixture was poured into water and the mixture extracted with DCM. The combined organic extracts were then dried and evaporated to afford the title compound (130 mg, 38%) as a light brown solid after purification by chromatography on silica gel eluting with ethyl acetate: heptane (1:1 to 3:1). MS: m/e=347.0 (M++H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06762320B2
Source datasetuspto-grants-2004_07
ORD IDord-9eb8f17fef6e48f98dcd591083ba8006
Source noteuspto-grants-2004_07