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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2250257Generated: November 1, 2026

2(1h)-Quinazolinone,3,4-dihydro-8-methoxy-3-[1-(phenylmethyl)-4-piperidinyl]- → 8-Methoxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

https://huagongshe.com/reaction/2250257

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2(1h)-Quinazolinone,3,4-dihydro-8-methoxy-3-[1-(phenylmethyl)-4-piperidinyl]-HCID 21102156—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product8-Methoxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-oneHCID 1832104793%

Reaction Steps

3-(1-Benzyl-piperidin-4-yl)-8-methoxy-3,4-dihydro-1H-quinazolin-2-one (100 mg, 0.28 mmol) in methanol (5 mL) was flushed with nitrogen, and treated with palladium on charcoal (10%, 10 mg). The flask was flushed with hydrogen and allowed to stir under an atmosphere of hydrogen overnight. The reaction was flushed with nitrogen, filtered through celite, and concentrated. Column chromatography gave 68 mg (93%) of the desired material. LC/MS: tR=1.11 min, 262.23 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07314883B2
Source datasetuspto-grants-2008_01
ORD IDord-1b4a5ad1d8ea44599dc06ff86c11de49
Source noteuspto-grants-2008_01