Sodium Cyanide → (3R)-3-Hydroxy-4,4-dimethylpentanenitrile

Temperature

60 °C

To a stirred solution of 4-methyl-benzenesulfonic acid [(2S)-2-hydroxy-3,3-dimethyl-butyl]ester (4.2 g, 14.4 mmol) in dimethylsulfoxide (30 ml) is added sodium cyanide (3.6 g, 71.9 mmol) and the reaction mixture is heated at 60° C. for 16 h. The reaction mixture is poured onto water (100 ml) and extracted with ethyl acetate (3×30 ml). The combined organic layers are washed with water (3×50 ml), dried over sodium sulfate and evaporated to dryness affording (3R)-3-hydroxy-4,4-dimethyl-pentanenitrile, which is used in next step without further purification (1.3 g, 10.2 mmol, 71%).

1. additionThe reaction mixture is poured onto water (100 ml)
2. extractionextracted with ethyl acetate (3×30 ml)
3. washThe combined organic layers are washed with water (3×50 ml)
4. dry with materialdried over sodium sulfate
5. customevaporated to dryness

ORD record

ord-f5f3d00ccbd0431e9e5eccd9d5fc02e8

Source dataset

uspto-grants-2015_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09108936B2