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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 489747Erstellt: 24. Oktober 2026

Acetonitrile → (2R)-(4E)-5-(3-pyridyl)4-penten-2-ol

https://huagongshe.com/de/reaction/489747

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktAcetonitrileHCID 6342—
EduktTriethylamineHCID 8471—
Edukt3-BromopyridineHCID 12286—
Edukt(2R)-pent-4-en-2-olHCID 6999724—
KatalysatorTri-o-tolylphosphineHCID 80271—
Katalysatorpalladium(II) acetateHCID 167845—
LösungsmittelWaterHCID 962—
Produkt(2R)-(4E)-5-(3-pyridyl)4-penten-2-olHCID 6674556065,2%

Reaktionsbedingungen

Temperatur140 °C

Reaktionsschritte

A mixture of 3-bromopyridine (9.17 g, 58.04 mmol), (2R)-4-penten-2-ol (6.00 g, 69.65 mmol), palladium(II) acetate (130 mg, 0.58 mmol), tri-o-tolylphosphine (710 mg, 2.32 mmol), triethylamine (34.7 mL, 249.5 mmol), and acetonitrile (35 mL) were heated in a sealed glass tube at 140° C. for 14 h. The reaction mixture was cooled to ambient temperature, diluted with water, and extracted with chloroform (3×200 mL). The combined chloroform extracts were dried over sodium sulfate, filtered, and concentrated by rotary evaporation to give 6.17 g (65.2%) of a pale-yellow oil.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS06979695B2
Quelldatensatzuspto-grants-2005_12
ORD IDord-3734bd6563844b058ed6bd49d61cfd10
Quellennotizuspto-grants-2005_12