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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 931668Generated: October 31, 2026

Dimethylformamide → 4-Bromo-1-(chloromethyl)-2-methylbenzene

https://huagongshe.com/reaction/931668

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant(4-Bromo-2-methylphenyl)methanolHCID 22280088—
SolventDichloromethaneHCID 6344—
Product4-Bromo-1-(chloromethyl)-2-methylbenzeneHCID 20072358100%

Reaction Steps

Add thionyl chloride (14.31 mL, 0.2 mol,) to a solution of (4-bromo-2-methyl-phenyl)methanol (32.9 g, 0.16 mol) in dichloromethane (200 mL) and dimethylformamide (0.025 mol, 2.0 mL) at 0° C. After 1 hour at room temperature pour the mixture into ice-water (100 g), extract with dichloromethane (300 mL), wash extract with 5% aq. sodium bicarbonate (30 mL) and brine (200 mL), dry over sodium sulfate, and concentrate under reduced pressure to give the crude title compound as a white solid (35.0 g, 0.16 mol). The material is used for the next step of reaction without further purification. 1H NMR (CDCl3): δ 2.38 (s, 3H), 4.52 (s, 2H), 7.13-7.35 (m, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296775B2
Source datasetuspto-grants-2016_03
ORD IDord-08435e2ae3cb4fecb62420bbb09ada06
Source noteuspto-grants-2016_03