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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 587015Generated: October 29, 2026

Formaldehyde → HCID 20064044, compound

https://huagongshe.com/reaction/587015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantSulfuric AcidHCID 1118—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 21271077HCID 21271077—
SolventWaterHCID 962—
ProductHCID 20064044HCID 2006404419.5%

Reaction Conditions

Temperature70 °C

Reaction Steps

2,5-dimethylisooxazole (10.0 g) was dissolved in water (100 ml). To the solution were added concentrated sulfuric acid (35.3 g) and 40% aqueous formaldehyde solution (46.4 g) at 0° C., and the mixture was heated at 70° C. overnight. The mixture was neutralized with 1N sodium hydroxide solution at 0° C. and extracted with chloroform three times. The extract was dried with magnesium sulfate, the solvent was evaporated under reduced pressure, and the resulting residue was distilled under reduced pressure to give 4-hydroxymethyl-2,5-dimethylisooxazole (2.54 g) as colorless liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06936602B1
Source datasetuspto-grants-2005_08
ORD IDord-aafe29f5f17c4b039c1a1ecd72b19461
Source noteuspto-grants-2005_08