Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519581Generated: November 3, 2026

Sodium Chloride → Benzonitrile, 4-formyl-2-methyl- (9CI)

https://huagongshe.com/reaction/1519581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantDimethylformamideHCID 6228—
Reactant4-Bromo-2-methylbenzonitrileHCID 144267—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductBenzonitrile, 4-formyl-2-methyl- (9CI)HCID 45083566—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a stirred solution of 4-bromo-2-methylbenzonitrile (4.0 g, 20 mmol) in 100 mL of anhydrous THF was added BuLi (1.6 M, 12.8 mL) dropwise at −78° C. under nitrogen atmosphere. After the addition, the pale red solution was stirred for 5 min at −78° C. and dry DMF (2.2 mL) then added dropwise. After 20 min, the reaction mixture was poured onto a saturated solution of sodium chloride (100 mL). The organic phase was separated, extracted with diethyl ether (100 mL), dried over Na2SO4 and distilled off the solvent to afford 4-formyl-2-methylbenzonitrile. MS m/z: 146 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073882B2
Source datasetuspto-grants-2015_07
ORD IDord-475493b88b5d48b19f7654ce51c00e82
Source noteuspto-grants-2015_07