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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249136Generated: October 28, 2026

Sodium Hydroxide → HCID 10926215, compound

https://huagongshe.com/reaction/249136

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 4-[3-(3-nitrobenzoyl)indol-1-yl]butyrateHCID 10547793—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 10926215HCID 1092621586.4%

Reaction Conditions

Temperature25 °C

Reaction Steps

A mixture of ethyl 4-[3-(3-nitrobenzoyl)indol-1-yl]butyrate (1.60 g), 1N aqueous sodium hydroxide (11 ml) and 1,4-dioxane (50 ml) was stirred at 25° C. for 14 hours. After evaporation of the organic solvent, 1N hydrochloric acid (20 ml) was added to the aqueous solution and the mixture was extracted with ethyl acetate. The extract was washed with water, dried over magnesium sulfate, and evaporated in vacuo. The crystalline residue was recrystallized from a mixture of ethyl acetate and hexane to give 4-[3-(3-nitrobenzoyl)indol-1-yl]butyric acid (1.28 g) as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05212320
Source datasetuspto-grants-1993_05
ORD IDord-9a40cc0b03ce41e3a8d86ed4ac162358
Source noteuspto-grants-1993_05