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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1031771Generated: October 30, 2026

Ethanol → Ethyl indole-2-carboxylate

https://huagongshe.com/reaction/1031771

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
ReactantIndole-2-carboxylic acidHCID 72899—
ProductEthyl indole-2-carboxylateHCID 73125—

Reaction Steps

Heat 5 kg of 2-carboxyindole suspended in ethanol in the presence of sulfuric acid to boiling for 8 hours. Evaporate off the ethanol, then take up with 40 liters of ethyl acetate and wash the organic solution with an aqueous sodium hydroxide solution and dry.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04954640
Source datasetuspto-grants-1990_09
ORD IDord-b5419e93a3c442829e259d29dfe2a6d8
Source noteuspto-grants-1990_09