Formaldehyde → HCID 53247630, compound
Reaction equation
[NH2:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[C:4](=[O:30])[C:5]([C:12]([NH:14][C:15]1[CH:20]=[C:19]([OH:21])[C:18]([C:22]([CH3:25])([CH3:24])[CH3:23])=[CH:17][C:16]=1[C:26]([CH3:29])([CH3:28])[CH3:27])=[O:13])=[CH:6][NH:7]2.[CH2:31]=O>[Pd]>[C:26]([C:16]1[CH:17]=[C:18]([C:22]([CH3:23])([CH3:24])[CH3:25])[C:19]([OH:21])=[CH:20][C:15]=1[NH:14][C:12]([C:5]1[C:4](=[O:30])[C:3]2[C:8](=[CH:9][CH:10]=[CH:11][C:2]=2[NH:1][CH3:31])[NH:7][CH:6]=1)=[O:13])([CH3:29])([CH3:28])[CH3:27]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A flask charged with 5-amino-N-(2,4-ditert-butyl-5-hydroxy-phenyl)-4-oxo-1H-quinoline-3-carboxamide (23 mg, 0.06 mmol), Pd/C (5 mg, 0.05 mmol) and formaldehyde (5 μL of 38% w/v, 0.06 mmol) was evacuated under vacuum, followed by purging with N2. Methanol (1 mL) was added followed by evacuating under vacuum. The reaction mixture was stirred overnight under an atmosphere of hydrogen, filtered through a plug of celite and concentrated to get N-(2,4-ditert-butyl-5-hydroxy-phenyl)-5-methylamino-4-oxo-1H-quinoline-3-carboxamide. LC/MS: m/z 422.5 (M+H)+ at 2.24 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).
Workup
- customwas evacuated under vacuum
- customby purging with N2
- additionMethanol (1 mL) was added
- customby evacuating under vacuum
- filtrationfiltered through a plug of celite
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-2e03e060bdc04f32a8352555fe40ccc8
- Source dataset
- uspto-grants-2013_01
- Patent number
- US08354427B2
Reaction notes
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