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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 419714Generated: November 2, 2026

Diethyl Ether → HCID 66650300, compound

https://huagongshe.com/reaction/419714

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
ReactantHCID 178451790HCID 178451790—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66650300HCID 6665030076%

Reaction Conditions

Temperature0 °C

Reaction Steps

Add tert-butyl 4-(4-(3-(trifluoromethyl)phenyl)-1H-imidazol-2-yl)piperidine-1-carboxylate (540 mg, 1.36 mmol) to diethyl ether (100 mL) and cool to 0° C. Add sodium hydride (55 mg, 1.5 mmol, 60% in mineral oil) to the mixture followed by methyl iodide (0.142 mL, 2.72 mmol). Stir the mixture for 1 h at 0° C. and warm to room temperature. Add THF (40 mL) and stir the mixture for 12 h. Concentrate the mixture, and purify the residue by silica gel chromatography (120 g RediSep column, elute with a gradient of 0% to 100% ethyl acetate:hexane, over 40 min, 85 mL/min) to provide tert-butyl 4-(1-methyl-4-(3-(trifluoromethyl)phenyl)-1H-imidazol-2-yl)piperidine-1-carboxylate (425 mg, 76%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093383B2
Source datasetuspto-grants-2012_01
ORD IDord-42f0cbc4f027405ba1aaa4a281752dd2
Source noteuspto-grants-2012_01