Triethylamine → 2-Fluoro-2-trifluoromethyl-4-octenamide

Temperatur

0 °C

Into a reaction flask were charged 920 mg of (R)-1-hexen-3-ol (91.2%e.e.), 5.7 ml of triethylamine and 10 ml of dichloromethane, and the reaction mixture was cooled to 0° C. Holding the temperature at 0° C., 3.3 ml of hexafluoropropene diethylamine was added dropwise into the mixture. After the addition, the reaction mixture was stirred for 2 hours at 0° C. and 48 hours at room temperature. Into the mixture was added a saturated aqueous solution of sodium bicarbonate, and the mixture was extracted with dichloromethane. The organic layer was dried with anhydrous magnesium sulphate and then concentrated. The raw product was purified by silica gel column chromatography to obtain 1.35 g of the desired compound.

1. customat 0° C.
2. additionAfter the addition
3. extractionthe mixture was extracted with dichloromethane
4. dry with materialThe organic layer was dried with anhydrous magnesium sulphate
5. concentrationconcentrated
6. customThe raw product was purified by silica gel column chromatography

ORD-Eintrag

ord-1da0ef9cacfe4137a2d2e53cb63badc6

Quelldatensatz

uspto-grants-1999_10

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05965059