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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 614080Erstellt: 25. Oktober 2026

Furfuryl Alcohol → Pyroxyfur

https://huagongshe.com/reaction/614080

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktFurfuryl AlcoholHCID 7361—
EduktSodium HydroxideHCID 14798—
Edukt2,6-Dichloro-4-(trichloromethyl)pyridineHCID 89782—
LösungsmittelWaterHCID 962—
ProduktPyroxyfurHCID 12981387%

Reaktionsbedingungen

Temperatur50 °C

Reaktionsschritte

To 24 grams (0.6 mole) of sodium hydroxide dissolved in 120 mls of water, was added 300 mls of 2-(hydroxymethyl)furan and the solution warmed to 50° C. In this mixture was added incremently over a 20 minute period, 106.15 grams (0.4 mole) of 2,6-dichloro-4-(trichloromethyl)pyridine. The mixture was heated to ~80° C. for ~3.5 hours and thereafter diluted with water and extracted with hexane. The extract was washed with water and the hexane evaporated off leaving ~114 grams (~87 percent of theoretical) of the desired 2-chloro-6-(2-furanylmethoxy)-4-(trichloromethyl)pyridine product. The product, an oil, had a refractive index of n 25/d = 1.5722 and upon analysis was found to have carbon, hydrogen and nitrogen contents of 40.41, 2.21 and 4.21 percent, respectively, as compared with the theoretical contents of 40.40, 2.16 and 4.28 percent, respectively, as calculated for the above named compound.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04143144
Quelldatensatzuspto-grants-1979_03
ORD IDord-465154c22d344e468baac5ba686cee15
Quellennotizuspto-grants-1979_03