Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 262526Generated: November 2, 2026

Sodium Hydroxide → HCID 21319288, compound

https://huagongshe.com/reaction/262526

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantSodium DithioniteHCID 24489—
ReactantHCID 21319286HCID 21319286—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventAmmonium HydroxideHCID 14923—
ProductHCID 21319288HCID 2131928892%

Reaction Steps

A solution of sodium dithionite (2.05 g, 11.8 mmol) dissolved in 20 ml water and 5 ml concentrated ammonium hydroxide is added to the ethyl 3-nitro-4-aminobenzyl sulfide (1 g, 3.9 mmol) stirred in 20 ml 95% ethanol. The mixture is heated to reflux and 0.6 g sodium dithionite in 2 ml water and 0.5 ml ammonium hydroxide is added immediately. The mixture becomes colorless, is cooled to room temperature, basified with 5 ml 10% sodium hydroxide, evaporated to 1/2 volume, and washed with chloroform (X 5). The combined chloroform washings are washed with brine, dried (Na2SO4), and evaporated to give 0.65 g (92%) of an oil which is used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04154846
Source datasetuspto-grants-1979_05
ORD IDord-8158d9a687b440ef9b6fde7ec83b7a7c
Source noteuspto-grants-1979_05