Acetic Acid → HCID 178493295, compound
Reaction equation
[OH:1][CH2:2][CH2:3][CH2:4][NH:5][C:6]1[CH:11]=[C:10]([N+]([O-])=O)[CH:9]=[CH:8][N+:7]=1[O-:15].C[O-].[Na+].CO.C[C:22](O)=[O:23]>>[OH:1][CH2:2][CH2:3][CH2:4][NH:5][C:6]1[CH:11]=[C:10]([O:23][CH3:22])[CH:9]=[CH:8][N+:7]=1[O-:15]Participants
5
Procedure
A solution of 2-[(3-hydroxy-1-propyl)amino]-4-nitropyridine-N-oxide (0.275 g, 1 mmol) and 0.5 M NaOMe in MeOH (16 mL, 8 mmol) was heated at reflux under argon for 3 hr. The reaction was then allowed to cool, and glacial AcOH (0.5 mL, 8 mmol) was added. The solution was concentrated to dryness and the residue was triturated with CH2Cl2. The insoluble materials were removed by filtration and the filtrate was concentrated. Silica gel chromatography (5-15% MeOH/CH2Cl2) gave the title compound (0.23 g, 90%) as a colorless oil: MS (ES) m/e 199.0 (M+H)+.
Workup
- temperatureat reflux under argon for 3 hr
- temperatureto cool
- concentrationThe solution was concentrated to dryness
- customthe residue was triturated with CH2Cl2
- customThe insoluble materials were removed by filtration
- concentrationthe filtrate was concentrated
Sources & evidence
- ORD record
- ord-ef8d5997d3c14ca196d1caa4600b51d8
- Source dataset
- uspto-grants-2004_11
- Patent number
- US06825188B2
Reaction notes
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