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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1641588Generated: November 3, 2026

Methanol → HCID 66739221, compound

https://huagongshe.com/reaction/1641588

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 86633531HCID 86633531—
SolventEthyl AcetateHCID 8857—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 66739221HCID 6673922175%

Reaction Steps

A solution of (E)-(2-(4-nitrophenyl)-6-phenyl-dihydro-2H-pyran-3(4H)-ylidene)ethyl trifluoromethanesulfonate (0.3 mmol) in a mixture of 2:1 1,4-dioxane:methanol was treated with an aqueous NaOH solution (1%, 4 mL) at room temperature for 3 hours with stirring. Following completion of the reaction, brine was added to the reaction solution which was then diluted with ethylacetate. The organic layer thus formed was washed with water, dried over Na2SO4, filtered and concentrated. The purification of the concentrate afforded the title compound (Yield 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08115019B2
Source datasetuspto-grants-2012_02
ORD IDord-ad574074926c46f99ce1b451c0b70d80
Source noteuspto-grants-2012_02