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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1876896Erstellt: 26. Oktober 2026

Water → 3-[4-(2-chloro-5-methoxypyrimidin-4-yl)-1H-pyrazol-1-yl]-3-cyclopropylpropanenitrile

https://huagongshe.com/reaction/1876896

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktWaterHCID 962—
Edukt1,4-DioxaneHCID 31275—
EduktPotassium Phosphate, TribasicHCID 62657—
Edukt2,4-Dichloro-5-methoxypyrimidineHCID 601401—
Edukt3-cyclopropyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanenitrileHCID 67458056—
KatalysatorHCID 178418397HCID 178418397—
LösungsmittelEthyl AcetateHCID 8857—
Produkt3-[4-(2-chloro-5-methoxypyrimidin-4-yl)-1H-pyrazol-1-yl]-3-cyclopropylpropanenitrileHCID 8663730323,43%

Reaktionsbedingungen

Temperatur100 °C

Reaktionsschritte

A mixture of 2,4-dichloro-5-methoxypyrimidine (from Aldrich Chemicals, 1.47 g, 0.00821 mol), 3-cyclopropyl-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propanenitrile (from example 177 step 1, 2.34 g, 0.00815 mol), tetrakis(triphenylphosphine)palladium(0) (0.6 g, 0.0005 mol), and potassium phosphate (5.2 g, 0.025 mol) in 1,4-dioxane (20 mL, 0.3 mol) and water (2 mL, 0.1 mol) was heated at 100° C. overnight. After cooling to room temperature, the mixture was dilute with AcOEt, washed with water, brine, dried over MgSO4, concentrated. The residue was purified on silica gel, eluting with 0 to 60%, to give the desired product (580 mg, 23.43%). LCMS (M+H) 304.3

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08309718B2
Quelldatensatzuspto-grants-2012_11
ORD IDord-14b848bfdcea4116a5612e4be3f84866
Quellennotizuspto-grants-2012_11