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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1410217Generated: November 2, 2026

Sodium Sulfate → Ethyl 2-(2,2-difluoroethoxy)-4-methylamino-5-amino-benzoate

https://huagongshe.com/reaction/1410217

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium SulfateHCID 24436—
ReactantEthyl 2-(2,2-difluoroethoxy)-4-(methylamino)-5-nitrobenzoateHCID 59529798—
CatalystNickelHCID 935—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 2-(2,2-difluoroethoxy)-4-methylamino-5-amino-benzoateHCID 59529827—

Reaction Steps

A mixture of ethyl 2-(2,2-difluoroethoxy)-4-(methylamino)-5-nitrobenzoate (2.0 g; 6.57 mmol), Ra—Ni (1.0 g) and THF (100 mL) was stirred under H2-atmosphere (8 atm) over night at rt. Na2SO4 was added and the mixture was stirred another 30 min under H2-atmosphere. The mixture was filtered through celite and the sub-title compound was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921405B2
Source datasetuspto-grants-2014_12
ORD IDord-10d66185acac4a51a85727526940d1d6
Source noteuspto-grants-2014_12