Potassium Carbonate → 4-(2-Butynyloxy)-5-fluoro-6-(3,3,5,5-tetramethylpiperidino)pyrimidine
Reaction equation
[CH2:1]([O:5][C:6]1[C:11]([F:12])=[C:10](Cl)[N:9]=[CH:8][N:7]=1)[C:2]#[C:3][CH3:4].C(=O)([O-])[O-].[K+].[K+].Cl.[CH3:21][C:22]1([CH3:30])[CH2:27][C:26]([CH3:29])([CH3:28])[CH2:25][NH:24][CH2:23]1.[Cl-].[NH4+]>C(#N)C>[CH2:1]([O:5][C:6]1[C:11]([F:12])=[C:10]([N:24]2[CH2:25][C:26]([CH3:29])([CH3:28])[CH2:27][C:22]([CH3:30])([CH3:21])[CH2:23]2)[N:9]=[CH:8][N:7]=1)[C:2]#[C:3][CH3:4]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 70 °C
Procedure
Into 2 ml of acetonitrile were added 0.20 g of 4-(2-butynyloxy)-6-chloro-5-fluoropyrimidine, 0.54 g of potassium carbonate and 0.30 g of 3,3,5,5-tetramethylpiperidine hydrochloride, and the mixture was stirred for 4 hours at 70° C. The reaction mixture was cooled to near room temperature, a saturated ammonium chloride aqueous solution was added therein, and the mixture was extracted with tert-butyl methyl ether three times. The organic layers were washed with a saturated sodium chloride aqueous solution, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.22 g of 4-(2-butynyloxy)-5-fluoro-6-(3,3,5,5-tetramethylpiperidino)pyrimidine (hereinafter, referred to as Compound (39)).
Workup
- temperatureThe reaction mixture was cooled to near room temperature
- extractionthe mixture was extracted with tert-butyl methyl ether three times
- washThe organic layers were washed with a saturated sodium chloride aqueous solution
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-46697b3d13954b728fae4507e6014bad
- Source dataset
- uspto-grants-2011_07
- Patent number
- US07973028B2
Reaction notes
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