Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium Dithionite | HCID 24489 | — |
| Reactant | HCID 86669363 | HCID 86669363 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 86669371 | HCID 86669371 | 88% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09034861B2 |
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| Source dataset | uspto-grants-2015_05 |
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| ORD ID | ord-46583b35d81e4f3ab73c87dc23c2f719 |
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| Source note | uspto-grants-2015_05 |
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