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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523483Generated: October 27, 2026

Triethylamine → 2-[4-(3-Chlorophenyl)piperazin-1-yl]-5,6,7,8-tetrahydro-3H-quinazolin-4-one

https://huagongshe.com/reaction/523483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-(3-Chlorophenyl)piperazine monohydrochlorideHCID 25681—
Reactant2-(Methylthio)-5,6,7,8-tetrahydroquinazolin-4(3H)-oneHCID 135435256—
SolventIsoamyl AlcoholHCID 31260—
Product2-[4-(3-Chlorophenyl)piperazin-1-yl]-5,6,7,8-tetrahydro-3H-quinazolin-4-oneHCID 135611931—

Reaction Steps

2-Methylsulfanyl-5,6,7,8-tetrahydro-3H-quinazolin-4-one (100 mg; 0.51 mmol), 1-(3-chlorophenyl)piperazine hydrochloride (118.8 mg; 0.51 mmol) and triethylamine (141.3 μl; 1.02 mmol) are reacted in isoamyl alcohol (1 ml) in accordance with the procedure for Example 1 (reaction time 4 h) and worked up; yield: 51 mg (29%), crystals;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09339503B2
Source datasetuspto-grants-2016_05
ORD IDord-81f8f482ed364eb380a77e2983b99b44
Source noteuspto-grants-2016_05