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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2268758Generated: October 30, 2026

Tetrahydrofuran → HCID 18332475, compound

https://huagongshe.com/reaction/2268758

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantSodium hydrideHCID 24758—
Reactant2,3-Dichloro-5-(trifluoromethyl)pyridineHCID 112234—
ReactantHCID 18332478HCID 18332478—
SolventDiethyl EtherHCID 3283—
ProductHCID 18332475HCID 1833247586.1%

Reaction Steps

To a mixture of 0.21 g (0.9 mmol) of 5-(2-hydroxymethyl-α-methoxybenzyl)-3-methylisoxazole, 3 ml of tetrahydrofuran and 0.29 g (1.35 mmol) of 2,3-dichloro-5-trifluoromethylpyridine was added 0.05 g (1.3 mmol) of 60% sodium hydride under ice-cooling and stirred at room temperature for 2 hours. After completion of the reaction, 100 ml of ether was added and washed with 80 ml of brine. The ether layer was dried over anhydrous magnesium and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (ethyl acetate/n-hexane) to give 5-[2-(3-chloro-5-trifluoromethyl-2-pyridyloxymethyl)-α-methoxybenzyl]-3-methylisoxazole (0.32 g, 86.1%) as colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06329371B1
Source datasetuspto-grants-2001_12
ORD IDord-d00394bb646e4145abba8d4f6666db88
Source noteuspto-grants-2001_12