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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 592331Generated: November 1, 2026

Hydrochloric Acid → Sodium Chloride

https://huagongshe.com/reaction/592331

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 7-(4-fluorophenyl)-3-(2-hydroxy-2-methylpropyl)-2-oxo-2,3-dihydro-1H-benzimidazole-5-carboxylateHCID 66690107—
SolventMethanolHCID 887—
ProductSodium ChlorideHCID 5234982.1%
Product7-(4-Fluorophenyl)-3-(2-hydroxy-2-methylpropyl)-2-oxo-2,3-dihydro-1H-benzimidazole-5-carboxylic acidHCID 66690139—

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of methyl 7-(4-fluorophenyl)-3-(2-hydroxy-2-methylpropyl)-2-oxo-2,3-dihydro-1H-benzimidazole-5-carboxylate (80.0 mg, 0.223 mmol) in MeOH (0.446 mL) was added sodium hydroxide (0.446 mL, 1M, 0.446 mmol). Reaction heated in the microwave at 100° C. for 15 min. More sodium hydroxide (0.446 mL, 1M, 0.446 mmol) added and heated an additional 20 min in the microwave at 100° C. HCl (0.446 mL, 2M in ether, 0.892 mmol) was added and the reaction mixture was concentrated to give the title compound with four equivalents of sodium chloride (128 mg): LC-MS [M+1]=345.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238647B2
Source datasetuspto-grants-2016_01
ORD IDord-c433d0da69a548df9a4ed10db856b054
Source noteuspto-grants-2016_01