Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 863683Generated: October 30, 2026

Ammonium Chloride → 2,3-dihydro-2-(hydroxymethyl)-1H-pyrrolo[1,2-a]indole

https://huagongshe.com/reaction/863683

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 19696125HCID 19696125—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product2,3-dihydro-2-(hydroxymethyl)-1H-pyrrolo[1,2-a]indoleHCID 1969636358%

Reaction Steps

4 ml of a 1M solution of lithium aluminum hydride in tetrahydrofuran were added to a solution of 750 mg of ethyl 2,3-dihydro-1H-pyrrolo[1,2-a]indole-2-carboxylate in 30 ml of tetrahydrofuran. After 1 hour, 30 ml of saturated ammonium chloride solution were added and the mixture was evaporated. The residue was extracted with dichloromethane and the organic extract was dried and evaporated. Crystallization of the residue from diethyl ether/petroleum ether gave 355 mg of 2,3-dihydro-2-(hydroxymethyl)-1H-pyrrolo[1,2-a]indole of melting point 76°-78° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05721245
Source datasetuspto-grants-1998_02
ORD IDord-1b4a2dc1665745f19420c6cad0c925f0
Source noteuspto-grants-1998_02