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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2288503Generated: October 31, 2026

Hydrochloric Acid → 2-[2-(4-Cyanophenyl)-ethyl]-quinazoline-7-carboxylic acid

https://huagongshe.com/reaction/2288503

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
ReactantMethyl 2-[2-(4-cyanophenyl)-ethyl]-quinazoline-7-carboxylateHCID 18412314—
SolventLithium HydroxideHCID 3939—
Product2-[2-(4-Cyanophenyl)-ethyl]-quinazoline-7-carboxylic acidHCID 18412447—

Reaction Steps

0.3 g (0.94 mmol) of methyl 2-[2-(4-cyanophenyl)-ethyl]-quinazoline-7-carboxylate were dissolved in 4.7 ml of 1N lithium hydroxide solution and 4 ml of tetrahydrofuran and stirred for 3 hours at ambient temperature. Then 4.7 ml of 1N hydrochloric acid were added and the mixture was stirred for 30 minutes. The product precipitated was suction filtered, washed with water and dried. Yield: 0.30 g (100% of theory), Rf value: 0.1 (silica gel, ethyl acetate/cyclohexane=1:1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06087380
Source datasetuspto-grants-2000_07
ORD IDord-c3bb20ac50f5422fbd9d75604164e59e
Source noteuspto-grants-2000_07