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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 721981Generated: October 28, 2026

Water → HCID 21881984, compound

https://huagongshe.com/reaction/721981

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
Reactant2,4-Dibromobutyryl chlorideHCID 4413143—
Reactant4-Chloro-3-methoxyanilineHCID 13103692—
SolventDichloromethaneHCID 6344—
ProductHCID 21881984HCID 2188198443.3%

Reaction Steps

To a stirred solution of 4-chloro-3-methoxybenzeneamine (4.7 g, 29.6 mmol) in methylene chloride (100 mL) at ˜0° C. was slowly added 2,4dibromobutyryl chloride (5.1 mL, 39 mmol). After the addition, the reaction mixture was stirred for ˜5 minutes and triethylamine (24.7 mL, 178 mmol) was then added. The resulting reaction mixture was allowed to warm up to room temperature and stirred at room temperature for 5 days. Water (˜100 mL) was then added to the reaction mixture. The organic layer was separated, dried over MgSO4 and concentrated. The residue was purified by column chromatography (silica gel, ˜33% ethyl acetate/˜67% hexanes) to give the title compound as a yellow solid (3.9 g) melting at 113–115° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07138361B2
Source datasetuspto-grants-2006_11
ORD IDord-68e57b90a98b4ef38f843c4403c6a98a
Source noteuspto-grants-2006_11