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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2178062Generated: October 26, 2026

Azobisisobutyronitrile → Benzoic acid, 4-(bromomethyl)-2-ethoxy-, ethyl ester

https://huagongshe.com/reaction/2178062

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAzobisisobutyronitrileHCID 6547—
ReactantN-bromobutanimideHCID 67184—
ReactantBenzoic acid, 2-ethoxy-4-methyl-, ethyl esterHCID 11816602—
Solvent2-MethylbenzotrifluorideHCID 2775324—
ProductBenzoic acid, 4-(bromomethyl)-2-ethoxy-, ethyl esterHCID 1058933930.4%

Reaction Steps

To a solution of ethyl 2-ethoxy-4-methylbenzoate (100 mg, 0.481 mmol) in 2 mL of trifluoromethyl toluene was added NBS (94 mg, 0.529 mmol) and AIBN (10 mg) in portions. The mixture was heated to reflux and stirred for 24 h. The reaction mixture was concentrated, diluted with 10 mL of EA, washed with 5 mL of 4 N NaOH, 5 mL of brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford ethyl 4-(bromomethyl)-2-ethoxybenzoate as brown oil (42 mg, 30%), which was used for the next step directly.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09067893B2
Source datasetuspto-grants-2015_06
ORD IDord-bba2b5c1b5a8455a872231d9c228d353
Source noteuspto-grants-2015_06