2-Butyn-1-ol → HCID 12137597, compound
Reaction equation
[H-].[Na+].[CH2:3]([OH:7])[C:4]#[C:5][CH3:6].Cl[C:9]1[CH:14]=[C:13](Cl)[N:12]=[CH:11][N:10]=1.[Cl-].[NH4+]>O1CCCC1>[CH2:3]([O:7][C:9]1[CH:14]=[C:13]([O:7][CH2:3][C:4]#[C:5][CH3:6])[N:12]=[CH:11][N:10]=1)[C:4]#[C:5][CH3:6]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
In 4 ml of tetrahydrofuran was suspended 0.27 g of sodium hydride (60% in oil), to which 0.7 ml of a tetrahydrofuran solution containing 0.41 g of 2-butyn-1-ol was slowly added dropwise with stirring at room temperature. The mixture was then stirred at room temperature for 20 minutes, to which 0.7 ml of a tetrahydrofuran solution containing 0.4 g of 4,6-dichloropyrimidine was slowly added dropwise. After completion of the dropwise addition, the mixture was stirred at room temperature for 40 minutes. The reaction mixture was then poured into a saturated aqueous ammonium chloride solution and extracted three times with chloroform. The chloroform layers were combined, washed with water, dried over anhydrous magnesium sulfate, and then concentrated. The residue was subjected to silica gel column chromatography to give 0.39 g of 4,6-bis(2-butynyloxy)pyrimidine (the present compound (1)), m.p.: 82.9° C.
Workup
- additionwas slowly added dropwise
- additionwas slowly added dropwise
- additionAfter completion of the dropwise addition
- stirringthe mixture was stirred at room temperature for 40 minutes
- extractionextracted three times with chloroform
- washwashed with water
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-338c5f934752447ca7c8cc04c3000f0f
- Source dataset
- uspto-grants-2005_01
- Patent number
- US06838463B2
Reaction notes
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