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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 901055Generated: October 26, 2026

Etodolac → HCID 10891051, compound

https://huagongshe.com/reaction/901055

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEtodolacHCID 3308—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 10891051HCID 1089105198.1%

Reaction Steps

A solution of etodolac (2.0 g, 6.97 mmol) in dry THF (5 mL) was added dropwise to 1M LiAlH4 in THF (10.5 mL, 10.5 mmol, 1.5 eq) over five minutes and stirred at room temperature overnight under argon. The resulting mixture was then slowly quenched with EtOAc and poured over water to form an emulsion. The emulsion was filtered, and the aqueous layer was separated and extracted twice with EtOAc. The three organic phases were combined, washed with brine, dried with Na2SO4, concentrated, and purified by column chromatography using 50:50:EtOAc:Hexane to give a yellow oil (1.87 g, 98%): 1HNMR (CDCl3, δ TMS): 0.95 (t, 3H), 1.36 (t, 3H), 1.96 (m, 2H), 2.14 (m, 2H), 2.68 (br, OH), 2.81 (m, 2H), 2.83 (q, 2H), 3.70 (m, 2H), 4.07 (m, 2H), 7.02-7.39 (m, 3H, Ar—H), 7.74 (br, 1H, NH). MS+: m/z 296 (MNa+). MS−: m/z 308 (MCl−), 272 ([M−H]−).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07361680B2
Source datasetuspto-grants-2008_04
ORD IDord-59df60ed67b34d2f9ddb28de47bdaa95
Source noteuspto-grants-2008_04