Acetonitrile → 4,4-Dimethyl-3-oxohexanenitrile

Temperatur

60 °C

A suspension of sodium hydride (60% dispersion in mineral oil, 3.18 g, 79.4 mmol) in tetrahydrofuran (60 mL) was heated at 60° C. for 1 hour. The reaction mixture was then cooled to room temperature, acetonitrile (4.2 mL, 79.4 mmol) and 2,2-dimethyl-butyric acid ethyl ester [(7.95 g, 61 mmol), J. Am. Chem. Soc., 1942, 64, 2964] in tetrahydrofuran (100 mL) were added and the mixture was stirred for 4 hours at 25° C. The mixture was then diluted with 1M hydrochloric acid (100 mL) and the aqueous layer was separated and extracted with ethyl acetate. The organic solution was then dried over magnesium sulfate, concentrated in vacuo and the residue was triturated with heptane to afford the title compound as a pale brown solid in 27% yield, 2.3 g.

1. temperatureThe reaction mixture was then cooled to room temperature
2. customthe aqueous layer was separated
3. extractionextracted with ethyl acetate
4. dry with materialThe organic solution was then dried over magnesium sulfate
5. concentrationconcentrated in vacuo
6. customthe residue was triturated with heptane

ORD-Eintrag

ord-affeb2d86b2f40c6abc19030d4b6863c

Quelldatensatz

uspto-grants-2011_12

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08076356B2