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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873070Generated: October 30, 2026

Ammonium Hydroxide → HCID 178516505, compound

https://huagongshe.com/reaction/873070

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
Reactant2-(trifluoromethyl)-4H-pyran-4-oneHCID 10855814—
SolventMethanolHCID 887—
ProductHCID 178516505HCID 17851650580.6%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of 2-(trifluoromethyl)-4H-pyran-4-one (350 mg, 2.13 mmol) in MeOH (15 mL) was added ammonium hydroxide (14.8 mL, 107 mmol) at 25° C. The reaction mixture was stirred at 90° C. for 10 h, then concentrated, diluted with water and extracted with ethyl acetate. Combined organic portions were dried over Na2SO4, filtered and concentrated. Purification via Biotage Spla HPFC system (C18, mobile phase: 0.01% NH4HCO3, CH3CN/water, 10˜95%, 9.5 min, 30 mL/min) afforded the title product (280 mg) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975400B2
Source datasetuspto-grants-2015_03
ORD IDord-d71d680a9d9f4ca1a7ffe91a9a396b90
Source noteuspto-grants-2015_03