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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1980860Generated: November 2, 2026

Sodium Hydroxide → 3-[2-(4-Carboxyphenoxy)-ethyl]-2-(3-pyridyl)-indole

https://huagongshe.com/reaction/1980860

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant3-[2-(4-Ethoxycarbonylphenoxy)ethyl]-2-(3-pyridyl)-indoleHCID 20400790—
SolventHydrochloric AcidHCID 313—
Product3-[2-(4-Carboxyphenoxy)-ethyl]-2-(3-pyridyl)-indoleHCID 20400814—

Reaction Steps

A mixture of 4.5 g of 3-[2-(4-ethoxycarbonylphenoxy)ethyl]-2-(3-pyridyl)-indole in 220 ml of 2N hydrochloric acid is heated under reflux for 6 hours. After cooling the solution is made basic with 3N NaOH and extracted with ethyl acetate. The basic solution is filtered and acidifed to pH 6-7 with 3N NCl. The solid is collected and dried to give 3-[2-(4-carboxyphenoxy)-ethyl]-2-(3-pyridyl)-indole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04511573
Source datasetuspto-grants-1985_04
ORD IDord-fc974d9019c74f519b43c5ba1b849340
Source noteuspto-grants-1985_04