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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1410215Generated: November 2, 2026

Water → Ethyl 2-fluoro-4-(methylamino)-5-nitrobenzoate

https://huagongshe.com/reaction/1410215

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethylamineHCID 6329—
ReactantEthyl 2,4-difluoro-5-nitrobenzoateHCID 22330120—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 2-fluoro-4-(methylamino)-5-nitrobenzoateHCID 59529818—

Reaction Steps

A solution of MeNH2 in THF (21.6 mL; 2 M; 43.3 mmol) was added dropwise to a solution of ethyl 2,4-difluoro-5-nitrobenzoate (5.0 g; 21.6 mmol) in THF (70 mL) at −5° C. The mixture was left over night at rt whereafter an additional portion of MeNH2 in THF (10.0 mL; 2 M; 21.6 mmol) was added at 0° C. After 3 h at rt, water was added and the mixture was concentrated. The resulting precipitate was filtered off and dried to give the sub-title compound. Yield: 5.0 g (96%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921405B2
Source datasetuspto-grants-2014_12
ORD IDord-854cf4cc74204654b478249ed47ccc7d
Source noteuspto-grants-2014_12