Methyl iodide → 2-(3-Bromophenyl)propanenitrile

温度

0 °C

To a solution of 3-bromophenylacetonitrile (12 g, 61.2 mmol) in tetrahydrofuran (150 ml) cooled down to 0° C., was added 60% sodium hydride in mineral oil (2.25 g, 56.3 mmol) portionwise over 10 minutes. The reaction mixture was stirred at 0° C. for 40 minutes. Methyl iodide (5.71 ml, 91.8 mmol) was added dropwise at 0° C. and the reaction mixture was stirred at 0° C. for a further 1 hour. The reaction mixture was diluted with ethyl acetate (250 ml), washed with water and brine. The organic phase was dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified on silica gel by flash column chromatography (ISCO Companion, 330 g column, 0-20% EtOAc/Petrol) to afford the title compound as a colourless oil (7.06 g, 55% yield).

1. stirringthe reaction mixture was stirred at 0° C. for a further 1 hour
2. washwashed with water and brine
3. dry with materialThe organic phase was dried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customThe residue was purified on silica gel by flash column chromatography (ISCO Companion, 330 g column, 0-20% EtOAc/Petrol)

ORDレコード

ord-da1b6a5ea82b4c269a0a4d5ec6a42435

出典データセット

uspto-grants-2012_05

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08173635B2