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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1367993Generated: October 30, 2026

Sodium Dithionite → 2,3-Diamino-5-ethylsulfanyl-benzoic acid ethyl ester

https://huagongshe.com/reaction/1367993

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium DithioniteHCID 24489—
Reactant3-Amino-5-ethylsulfanyl-2-nitro-benzoic acid ethyl esterHCID 66940810—
SolventEthanol ethyl acetate waterHCID 86601158—
Product2,3-Diamino-5-ethylsulfanyl-benzoic acid ethyl esterHCID 66940505—

Reaction Steps

1.5 g (5.5 mmol) of 3-amino-5-ethylsulfanyl-2-nitro-benzoic acid ethyl ester was reduced by 2.9 g (16.6 mmol) of Na2S2O4 in 28 mL of ethanol/ethyl acetate/water (3:3:1) at 80° C. for 3 h to produce 2,3-diamino-5-ethylsulfanyl-benzoic acid ethyl ester. LCMS: 241 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893267B2
Source datasetuspto-grants-2011_02
ORD IDord-0ae70b47b9a043b2bc0014ad37b39f07
Source noteuspto-grants-2011_02