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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1880384Generated: October 31, 2026

Ethanol → HCID 178466834, compound

https://huagongshe.com/reaction/1880384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 178469308HCID 178469308—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178466834HCID 178466834100.1%

Reaction Steps

To a solution of ethyl 7-ethoxy-3-ethyl-1H-indazole-5-carboxylate (389 mg, 1.48 mmol) in THF (13 mL) was added 1 M LiOH (3.0 mL, 3.0 mmol). The mixture was heated at reflux overnight. To the reaction was added trace amounts of ethanol to aid in solubilizing materials. Continue heating at reflux for an additional 2 hours. The reaction was cooled to room temperature, concentrated, triturated with 1 N HCl, the filtered solids were then washed with water and air dried to provide the title compound (347 mg, 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08318762B2
Source datasetuspto-grants-2012_11
ORD IDord-ae2813dea05242e1b67f17572bde45b6
Source noteuspto-grants-2012_11