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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 384829Generated: October 30, 2026

Piperidine → 6-Methoxy-7-(3-piperidinopropoxy)-3,4-dihydroquinazolin-4-one

https://huagongshe.com/reaction/384829

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant6-Methoxy-7-(3-chloropropoxy)quinazolin-4-oneHCID 135589777—
Solvent(+-)-2-ButanolHCID 6568—
Product6-Methoxy-7-(3-piperidinopropoxy)-3,4-dihydroquinazolin-4-oneHCID 13547155390.3%

Reaction Conditions

Temperature105 °C

Reaction Steps

In a 5 mL volume glass vessel equipped with a stirrer and a thermometer were placed 1.0 g (3.7 mmol) of 6-methoxy-7-(3-chloropropoxy)quinazolin-4-one prepared by procedures similar to those of Reference Example V-1, 1.62 g (19 mmol) of piperidine, and 10 mL of sec-butyl alcohol. The resulting mixture was stirred at 105° C. for 5 hours. After the reaction was complete, the reaction mixture was analyzed by high performance liquid chromatography (absolute quantitative analysis). There was produced 1.06 g (reaction yield: 90%) of 6-methoxy-7-(3-piperidinopropoxy)quinazolin-4-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08367824B2
Source datasetuspto-grants-2013_02
ORD IDord-f81cb1e82ded43d0be6a47b1808bf55b
Source noteuspto-grants-2013_02