Acetonitrile → 4,4,4-Trifluoro-3-oxobutanenitrile

Temperature

70 °C

To a suspension of NaH (2.88 g, 120 mmol) in THF (70 mL) at 80° C. was dropped a solution of methyl 2,2,2-trifluoroacetate (10.244 g, 80 mmol) in MeCN (5.377 g, 130 mmol) over 40 minutes. The mixture was heated at 70° C. for 2 hours and stirred at room temperature overnight. The reaction was quenched with water, acidified with 10% HCl solution to pH 1, and extracted with CH2Cl2. Extracts were dried over MgSO4, concentrated under reduced pressure, and dried under vacuum to afford 4,4,4-trifluoro-3-oxobutanenitrile as an oil (9.084 g, 83%). 1H NMR (300 MHz, CDCl3) δ 2.93 (s, 2H).

1. customThe reaction was quenched with water
2. extractionextracted with CH2Cl2
3. dry with materialExtracts were dried over MgSO4
4. concentrationconcentrated under reduced pressure
5. customdried under vacuum

ORD record

ord-2603cb64242a4419b8bb2654a3215ab8

Source dataset

uspto-grants-2016_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09320739B2