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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 555289Generated: October 30, 2026

Potassium Carbonate → 4-(2-Chloroethylamino)-3-nitro-benzoic Acid Methyl Ester

https://huagongshe.com/reaction/555289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 4-fluoro-3-nitrobenzoateHCID 5219721—
Reactant2-Chloroethylamine hydrochlorideHCID 9793737—
SolventDimethylformamideHCID 6228—
Product4-(2-Chloroethylamino)-3-nitro-benzoic Acid Methyl EsterHCID 1225733498%

Reaction Steps

To a solution of 4-fluoro-3-nitro-benzoic acid methyl ester (10.0 g, 0.0502 mol) in dry DMF (100 mL) was added with stirring potassium carbonate (59.0 g, 0.43 mol) followed by 2-chloroethylamine hydrochloride (8.7 g, 0.075 mol) and the mixture was stirred for 15 h at ambient temperature. The reaction mixture was diluted with ice water (500 mL) and the solid precipitated was filtered, washed with water and dried under vacuum to get a yellow solid (12.7 g, 98%). MS-ESI m/z 259 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08053431B2
Source datasetuspto-grants-2011_11
ORD IDord-77dd8b5c7214480c8aa98c17cb8f4198
Source noteuspto-grants-2011_11