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A mixture of the crude benzyl bromide and sodium cyanide (4.9 g, 0.1 m) in ethanol (500 ml) is stirred at 65° for 16 hours. The mixture is cooled, filtered and concentrated in vacuo. The residue is partitioned between water and chloroform and the chloroform phase is washed, dried with sodium sulfate and concentrated in vacuo to afford 5-bromo-3-methoxyphenylacetonitrile.

1. temperatureThe mixture is cooled
2. filtrationfiltered
3. concentrationconcentrated in vacuo
4. customThe residue is partitioned between water and chloroform
5. washthe chloroform phase is washed
6. dry with materialdried with sodium sulfate
7. concentrationconcentrated in vacuo