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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591617Generated: October 31, 2026

Benzoyl chloride → 2-(4-(4-Benzoylpiperazin-1-yl)phenyl)-5,7-dimethoxyquinazolin-4(3H)-one

https://huagongshe.com/reaction/591617

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoyl chlorideHCID 7412—
ReactantTriethylamineHCID 8471—
Reactant5,7-dimethoxy-2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-oneHCID 135939088—
SolventDichloromethaneHCID 6344—
Product2-(4-(4-Benzoylpiperazin-1-yl)phenyl)-5,7-dimethoxyquinazolin-4(3H)-oneHCID 13593909564.9%

Reaction Steps

To a solution of 5,7-dimethoxy-2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one (0.150 g, 0.40 mmol) in CH2Cl2 (10 mL) was added Et3N (0.08 mL, 0.60 mmol) and benzoyl chloride (0.04 mL, 0.36 mmol). The resulting solution was stirred at room temperature for 3 hours. The solution was concentrated in vacuo. The material was purified by flash chromatography on silica gel eluting with 0% to 10% of MeOH/EtOAc to afford the title compound (0.110 g, 64%). 1H NMR (300 MHz, DMSO-d6): δ 11.79 (s, 1H), 8.11 (d, J=8.7 Hz, 2H), 7.37-7.54 (m, 5H), 7.04 (d, J=8.9 Hz, 2H), 6.68 (s, 1H), 6.47 (s, 1H), 3.61-4.03 (m, 8H), 3.23-3.62 (m, 6H); ESI MS m/z 471 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-57f3afa96e8a44a4bca3b5a04a202ef5
Source noteuspto-grants-2016_01