Nitric Acid → HCID 86717937, compound
Reaction equation
Cl.[F:2][C:3]1[CH:8]=[CH:7][N:6]=[CH:5][C:4]=1[OH:9].[N+:10]([O-])([OH:12])=[O:11].[OH-].[Na+]>S(=O)(=O)(O)O>[F:2][C:3]1[CH:8]=[CH:7][N:6]=[C:5]([N+:10]([O-:12])=[O:11])[C:4]=1[OH:9]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
With ice cooling, 500 mg (3.43 mmol) of 4-fluoropyridin-3-ol hydrochloride were dissolved carefully in 3.2 ml of concentrated sulphuric acid, and, at 0° C., 0.21 ml of concentrated nitric acid was added carefully. The reaction was warmed to RT and stirred at RT overnight. The mixture was then added to 10 g of ice, and 6 ml of 45% strength aqueous sodium hydroxide solution were added dropwise with ice cooling. The resulting precipitate was filtered off and then dried under reduced pressure overnight. This gave 191 mg (36% of theory) of the title compound.
Workup
- additionwere added dropwise with ice cooling
- filtrationThe resulting precipitate was filtered off
- customdried under reduced pressure overnight
Sources & evidence
- ORD record
- ord-8cc86ac62bd24a02ad3b299fe1c03182
- Source dataset
- uspto-grants-2015_09
- Patent number
- US09126998B2
Reaction notes
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