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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 399136Generated: October 27, 2026

Lithium hydroxide, monohydrate → 1-(4-Cyanobenzyl)-5-hydroxymethyl-1H-imidazole

https://huagongshe.com/reaction/399136

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactant1-(4-Cyanobenzyl)-5-(acetoxymethyl)imidazole hydrobromideHCID 57427559—
SolventOxolane--water (1/1)HCID 21881883—
Product1-(4-Cyanobenzyl)-5-hydroxymethyl-1H-imidazoleHCID 10198247—

Reaction Steps

1-(4-Cyanobenzyl)-5-(acetoxymethyl)-imidazole hydrobromide (50.4 g, 150 mmol) in 3:1 THF/water (1.5 L) at 0° C. was added lithium hydroxide monohydrate (18.9 g, 450 mmol). After 1 hr, the reaction was concentrated in vacuo, diluted with EtOAc (3 L), and washed with water, sat. aq. NaHCO3 and brine. The solution was then dried (Na2SO4), filtered, and concentrated in vacuo to provide the crude product as a pale yellow fluffy solid which was sufficiently pure for use in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05817678
Source datasetuspto-grants-1998_10
ORD IDord-6129e6f08f1f42c0993050cda4f3a2b3
Source noteuspto-grants-1998_10