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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1748481Generated: October 30, 2026

Hydrochloric Acid → 5-Bromo-1-methyl-1H-indole-3-carboxylic acid

https://huagongshe.com/reaction/1748481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 86692444HCID 86692444—
SolventEthanolHCID 702—
Product5-Bromo-1-methyl-1H-indole-3-carboxylic acidHCID 1103241397.3%

Reaction Conditions

Temperature70 °C

Reaction Steps

1N Aqueous solution of sodium hydroxide (10 ml) was added at room temperature to a solution of 5-bromo-1-methyl-1H-indole-3-carboxylic acid ethyl ester (605 mg) in ethanol (10 ml) and stirred at 70° C. for three hours. After completion of the reaction, the reaction solution was cooled to room temperature, water and 1N hydrochloric acid aqueous solution were added and the precipitated solid was collected by filtration to give the titled compound (530 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09150555B2
Source datasetuspto-grants-2015_10
ORD IDord-139b6a20b53d429fbb7b8977b8edbf95
Source noteuspto-grants-2015_10