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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1242142Generated: November 1, 2026

Hydrochloric Acid → HCID 21938296, compound

https://huagongshe.com/reaction/1242142

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 21938270HCID 21938270—
SolventEthanolHCID 702—
ProductHCID 21938296HCID 2193829696.3%

Reaction Steps

A mixture of 3-(2,4-dichlorobenzyl)-6-(methoxycarbonyl)-2-methylindole (0.330 g), ethanol (15 ml) and 10% aqueous sodium hydroxide (10 ml) is heated under reflux for 1.5 hours. This is processed with hydrochloric acid to have a pH of 3, and the crystal formed is taken out through filtration. This is dried to obtain 6-carboxy-3-(2,4-dichlorobenzyl)-2-methylindole (73) (0.305 g)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07115647B2
Source datasetuspto-grants-2006_10
ORD IDord-6984c433e7d14bac9513e2c299be40e7
Source noteuspto-grants-2006_10