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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2392286Generated: October 30, 2026

Lithium Hydroxide → HCID 57826739, compound

https://huagongshe.com/reaction/2392286

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
Reactantmethyl 5-chloro-4-(1-methyl-1H-1,2,3-triazol-5-yl)-2-thiophenecarboxylateHCID 57826646—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57826739HCID 5782673998%

Reaction Steps

A solution of methyl 5-chloro-4-(1-methyl-1H-1,2,3-triazol-5-yl)-2-thiophenecarboxylate (400 mg, 1.55 mmol) and 1N LiOH (2.0 ml, 2.0 mmol) in THF (6 ml) was stirred at rt overnight. After removal of THF, the residue was diluted with 10 ml of H2O and washed with DCM (10 ml×2). The aqueous layer was acidified to pH 3 with 1N HCl and then extracted with EtOAc (30 ml×4). The organic layers were combined and concentrated to give 370 mg of the title compound as a white solid. LCMS (ES) m/z 244.0 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273782B2
Source datasetuspto-grants-2012_09
ORD IDord-dab742cea97048eea48e5e6765c528f5
Source noteuspto-grants-2012_09