Dimethylformamide → HCID 86703355, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=C(N)[C:6]2[C:11]([CH:12]=1)=[CH:10][CH:9]=[CH:8][CH:7]=2.C([O-])([O-])=O.[K+].[K+].IC.[CH3:22][N:23]([CH:25]=O)[CH3:24]>>[CH3:1][O:2][C:3]1[CH:4]=[C:25]([N:23]([CH3:22])[CH3:24])[C:10]2[C:11]([CH:12]=1)=[CH:6][CH:7]=[CH:8][CH:9]=2Participants
5
Procedure
To a solution of 3-methoxy-1-aminonaphthalene (U.S. Pat. No. 7,018,431 B2, 0.13 g) in DMF (5 mL), K2CO3 (0.31 g) and iodomethane (0.09 mL) were added. After stirring for 24 hours, the reaction was partitioned between water (30 mL) and EtOAc (30 mL), the layers separated, and the organic layer washed with brine, dried (Na2SO4) and concentrated. The crude reaction purified over silica gel (gradient of EtOAc in heptane) to provide the title compound (0.14 g) as a clear oil: 1H NMR (DMSO-d6) δ 7.99 (d, 1H); 7.74 (d, 1H), 7.40 (ddd, 1H), 7.30 (ddd, 1H), 6.95 (d, 1H), 6.67 (d, 1H), 3.83 (s, 3H), 2.78 (s, 6H); MS expected 202 (C13H16NO, M+1), found 202.
Workup
- customthe reaction was partitioned between water (30 mL) and EtOAc (30 mL)
- customthe layers separated
- washthe organic layer washed with brine
- dry with materialdried (Na2SO4)
- concentrationconcentrated
- customThe crude reaction
- custompurified over silica gel (gradient of EtOAc in heptane)
Sources & evidence
- ORD record
- ord-e12c3d6d79ca4e51add25ae9cdf40822
- Source dataset
- uspto-grants-2015_06
- Patent number
- US09056885B2
Reaction notes
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