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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 603129Generated: October 30, 2026

Water → 2-(4-Bromo-2-methylphenyl)acetonitrile

https://huagongshe.com/reaction/603129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium CyanideHCID 8929—
ReactantSodium BicarbonateHCID 516892—
Reactant4-Bromo-1-(bromomethyl)-2-methylbenzeneHCID 22569018—
SolventDimethylformamideHCID 6228—
SolventDiethylether hexaneHCID 21584099—
Product2-(4-Bromo-2-methylphenyl)acetonitrileHCID 1841429693%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

1-Bromo-4-(bromomethyl)-3-methylbenzene (13.2 g, 50.1 mmol) is dissolved in DMF (65 mL). The reaction mixture is cooled to 0-5° C. and NaCN (3.66 g, 74.6 mmol) is added follow by water (8 mL). The reaction is stirred overnight at room temperature and water (170 mL) is added followed by NaHCO3 sat. (130 mL) and hexane/Et2O (2:1) (150 mL). The organic phase is separated and the aqueous phase extracted with hexane/Et2O (2:1) (3×150 mL). The combined organic phases are washed with water (170 mL), dried over MgSO4, filtered and concentrated under reduced pressure to provide the expected product 2-(4-bromo-2-methylphenyl)acetonitrile (9.76 g, 93%) as an orange oil. 1H NMR (300 MHz, CHLOROFORM-D): δ 7.40-7.32 (2H, m), 7.23 (2H, d, J=8.2 Hz), 3.61 (2H, s), 2.32 (3H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07906654B2
Source datasetuspto-grants-2011_03
ORD IDord-482d97157f1946ee8db1915ea869143a
Source noteuspto-grants-2011_03