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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1393834Generated: October 31, 2026

Sodium Dithionite → 2-(4-Aminophenylamino)ethanesulfonamide

https://huagongshe.com/reaction/1393834

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium DithioniteHCID 24489—
Reactant2-(4-Nitrophenylamino)ethanesulfonamideHCID 23104441—
SolventEthanolHCID 702—
Product2-(4-Aminophenylamino)ethanesulfonamideHCID 2310444379.7%

Reaction Steps

1 g of 2-(4-nitrophenylamino)ethanesulfonamide (12) was suspended in 10 mL of ethanol. At room temperature, the suspension was poured onto a reductive solution of sodium hydrosulfite (8 g)—1N sodium hydroxide (30 mL). After decolorization, a precipitate formed. 0.7 g of crude product was isolated by suction-filtering and reslurrying in water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07347879B2
Source datasetuspto-grants-2008_03
ORD IDord-2535bde458e24411a61dd72c00e52b04
Source noteuspto-grants-2008_03