Tetrahydrofuran → Methanone, (6-chloro-3-pyridinyl)(4-methoxyphenyl)-
Reaction equation
[Cl:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#N)=[CH:4][N:3]=1.[CH3:10][O:11][C:12]1[CH:17]=[CH:16][C:15]([Mg]Br)=[CH:14][CH:13]=1.[NH4+].[Cl-].C1C[O:25]CC1>>[Cl:1][C:2]1[N:3]=[CH:4][C:5]([C:6]([C:15]2[CH:16]=[CH:17][C:12]([O:11][CH3:10])=[CH:13][CH:14]=2)=[O:25])=[CH:8][CH:9]=1Participants
5
Conditions
- Temperature
- 0 °C
Procedure
To a solution of 6-chloronicotinonitrile (1.39 g, 10 mmol) in 100 mL of THF was added (4-methoxyphenyl)magnesium bromide (15 mmol) dropwise at 0° C. The mixture was then stirred at 0° C. for 1 h. and then 50 mL sat. NH4Cl solution was added. The mixture was extracted with ethyl acetate and the organic layer was washed with brine, dried over Na2SO4, filtered, concentrated, and purified by flash chromatography to give the product (1.24 g, 50% yield).
Workup
- extractionThe mixture was extracted with ethyl acetate
- washthe organic layer was washed with brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
- custompurified by flash chromatography
Sources & evidence
- ORD record
- ord-89a73a1d11304a0abfb73d64c4681dfb
- Source dataset
- uspto-grants-2016_04
- Patent number
- US09309211B2
Reaction notes
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