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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 992044Generated: October 26, 2026

Ammonium formate → 4-(5-Fluoro-2,3-dihydro-benzofuran-7-yl)-piperazine

https://huagongshe.com/reaction/992044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium formateHCID 2723923—
Reactant1-Benzyl-4-(5-fluoro-2,3-dihydro-benzofuran-7-yl)-piperazineHCID 18414130—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product4-(5-Fluoro-2,3-dihydro-benzofuran-7-yl)-piperazineHCID 1841411475%

Reaction Steps

A mixture of 1-benzyl-4-(5-fluoro-2,3-dihydro-benzofuran-7-yl)-piperazine (2.06 g, 6.6 mmol), 10% palladium on carbon (0.6 g) and ammonium formate (0.83 g, 13 mmol) in ethanol (20 ml) was allowed to refux for 2 hours. The catalyst was filtered off and the solvent removed under vacuum. Chromatography (10-30% methanol-methylene chloride plus ammonium hydroxide) afforded 1.10 g (75%) of product as a yellow oil; MS EI m/e 222 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06465482B2
Source datasetuspto-grants-2002_10
ORD IDord-8f1110fab6d94e9fbab18bee2f67ec22
Source noteuspto-grants-2002_10