Reaktion #42818

Reaktionsgleichung

ammonium chloride

4-(2-butynyloxy)-6-chloropyrimidine

potassium carbonate

3,3-dimethylpiperidine hydrochloride

→

4-(2-butynyloxy)-6-(3,3-dimethylpiperidino)pyrimidine

Ausbeute 95.1%

Lösungsmittel

acetonitrile

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe reaction mixture was cooled to near room temperature
2. 2
   Extraktionthe mixture was extracted with tert-butyl methyl ether three times
3. 3
   WaschenThe organic layers were washed with a saturated sodium chloride aqueous solution
4. 4
   Trocknendried over anhydrous magnesium sulfate
5. 5
   Einengenconcentrated

Vorschrift

Into 2 ml of acetonitrile were added 0.20 g of 4-(2-butynyloxy)-6-chloropyrimidine, 0.45 g of potassium carbonate and 0.20 g of 3,3-dimethylpiperidine hydrochloride, and the mixture was stirred for 2 hours at 80° C. The reaction mixture was cooled to near room temperature, a saturated ammonium chloride aqueous solution was added therein, and the mixture was extracted with tert-butyl methyl ether three times. The organic layers were washed with a saturated sodium chloride aqueous solution, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.27 g of 4-(2-butynyloxy)-6-(3,3-dimethylpiperidino)pyrimidine (hereinafter, referred to as Compound (31)).

Quelle