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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1801248Generated: October 31, 2026

Hydrochloric Acid → HCID 67442259, compound

https://huagongshe.com/reaction/1801248

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67440731HCID 67440731—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67442259HCID 6744225995%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a stirred mixture solution of 2-(2-bromo-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (1.5 g, 3.8 mmol) in methanol (5.0 mL) and tetrahydrofuran (5.0 mL) was added 50% sodium hydroxide in water (1.0 mL). The reaction mixture was stirred at 70° C. for 6 hours. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×100 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 2-(2-bromo-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (1.3 g, 90%) as a light yellow solid: LC/MS m/e calcd for C18H18BrNO2 (M+H)+: 361.25, observed: 360.0 & 362.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08344137B2
Source datasetuspto-grants-2013_01
ORD IDord-225ca4a4c2d04d0a882afb1284b797f0
Source noteuspto-grants-2013_01