Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 461391Generated: October 25, 2026

Sodium borohydride → 5-Benzyloxy-3-(2-hydroxyethyl)indole

https://huagongshe.com/reaction/461391

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium borohydrideHCID 4311764—
ReactantMethyl 2-(5-(benzyloxy)-1H-indol-3-yl)-2-oxoacetateHCID 21906905—
SolventWaterHCID 962—
SolventIsopropanolHCID 3776—
Product5-Benzyloxy-3-(2-hydroxyethyl)indoleHCID 744849—

Reaction Steps

A suspension of methyl 5-benzyloxyindol-3-ylglyoxylate (10 g.) and sodium borohydride (3.7 g.) in isopropanol (100 ml.) was stirred and refluxed for 5 hours. The cooled mixture was diluted with water and extracted with dichloromethane. Evaporation of the extract gave a pale yellow oil which crystallised from a mixture of toluene and petroleum ether to give 5-benzyloxy-3-(2-hydroxyethyl)indole as a white crystalline powder m.p. 97°-98°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04062869
Source datasetuspto-grants-1977_12
ORD IDord-23ec6525c4244b4f9f7f173e7a825fb9
Source noteuspto-grants-1977_12