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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 83680Generated: October 29, 2026

Hydrochloric Acid → 1-(4-chlorobenzyl)-7-methyl-1H-indole-2-carboxylic acid

https://huagongshe.com/reaction/83680

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
Reactantethyl 1-(4-chlorobenzyl)-7-methyl-1H-indole-2-carboxylateHCID 68380121—
SolventEthanolHCID 702—
Product1-(4-chlorobenzyl)-7-methyl-1H-indole-2-carboxylic acidHCID 68379759—

Reaction Conditions

Temperature70 °C

Reaction Steps

ethyl 1-(4-chlorobenzyl)-7-methyl-1H-indole-2-carboxylate (212 mg, 0.647 mmol) was dissolved in EtOH (10 mL) and 10% aq. KOH (10 mL) was added. The reaction stirred for 4 h at 70° C., after which time as much solvent was stripped off as possible. The mostly aqueous mixture was cooled in an ice bath and acidified with concentrate HCl to obtain a precipitate that was collected over a filter and washed with 1M HCl and water. The title compound was not purified or characterized further. (Yield: 182 mg, 0.607 mmol, 94%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846684B2
Source datasetuspto-grants-2014_09
ORD IDord-f4d921ab8ce6418694df645a48989564
Source noteuspto-grants-2014_09