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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2221695Generated: October 30, 2026

Methanol → HCID 178469943, compound

https://huagongshe.com/reaction/2221695

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTetrahydrofuranHCID 8028—
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactant4-ethyl 1-tert-butyl 3-(methoxymethoxy)-1H-pyrazole-1,4-dicarboxylateHCID 69216511—
SolventWaterHCID 962—
ProductHCID 178469943HCID 17846994377%

Reaction Steps

A mixture of 4-ethyl 1-tert-butyl 3-(methoxymethoxy)-1H-pyrazole-1,4-dicarboxylate (3.52 g), lithium hydroxide monohydrate (1.47 g), tetrahydrofuran (60 mL), methanol (30 mL) and water (30 mL) was stirred at room temperature for hrs. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate-hexane (1:9-4:1, v/v) to give ethyl 3-(methoxymethoxy)-1H-pyrazole-4-carboxylate as a colorless solid (1.80 g, yield 77%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07368578B2
Source datasetuspto-grants-2008_05
ORD IDord-433cb0bc2097432e96a4e66cc8802922
Source noteuspto-grants-2008_05