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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2267875Generated: November 1, 2026

Lithium Hydroxide → 4-p-tolyloxy-1H-indole-2-carboxylic acid

https://huagongshe.com/reaction/2267875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
Reactant4-p-Tolyloxy-1H-indole-2-carboxylic acid ethyl esterHCID 66841540—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product4-p-tolyloxy-1H-indole-2-carboxylic acidHCID 66841347—

Reaction Steps

140 (70 mg, 0.237 mmol) is dissolved in 5 ml of methanol and treated with a solution of LiOH (11.4 mg, 0.474 mmol) in 3 ml of water. The mixture is stirred at room temperature for 18 hours. After evaporation, the crude product is acidified at 0° C. with 2M HCl and extracted with ethyl acetate. The organic layers are dried over sodium sulphate and evaporated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858781B2
Source datasetuspto-grants-2010_12
ORD IDord-c5b886202e3f4c4d9c657d184e61a449
Source noteuspto-grants-2010_12