Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 574101Generated: October 30, 2026

Water → HCID 86669371, compound

https://huagongshe.com/reaction/574101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium DithioniteHCID 24489—
ReactantHCID 86669363HCID 86669363—
SolventEthanolHCID 702—
ProductHCID 86669371HCID 8666937188%

Reaction Conditions

Temperature70 °C

Reaction Steps

A suspension of 2-fluoro-N-(2,5-difluoro-3-methoxy-6-nitrophenyl)-4-iodobenzeneamine (12.5 g, 29.5 mmol) in EtOH (200 mL) was heated at 70° C. to form a clear transparent solution and to this hot solution was added dropwise a freshly prepared solution of Na2S2O4 in water (15 g, 86 mmol, in 30 mL). The mixture was further heated for 1 h at 90° C. Upon cooling to room temperature the mixture was concentrated to remove ethanol under reduced pressure. The residue was diluted with ethyl acetate (25 mL), washed with water and brine, The organic layer was separated, dried over MgSO4 and concentrated under reduced pressure to yield off white solid (10.2 g, 88%). The solid was used as was in the next reaction without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09034861B2
Source datasetuspto-grants-2015_05
ORD IDord-46583b35d81e4f3ab73c87dc23c2f719
Source noteuspto-grants-2015_05