Sodium hydride → HCID 53901140, compound
Reaction equation
[OH:1][C:2]1[CH:13]=[CH:12][CH:11]=[C:10]([OH:14])[C:3]=1[C:4]([O:6][CH2:7][CH:8]=[CH2:9])=[O:5].[H-].[Na+].[CH3:17][O:18][C:19]1[CH:24]=[C:23]([O:25][CH3:26])[N:22]=[C:21](S(C)(=O)=O)[N:20]=1.[Cl-].[NH4+]>CN(C)C=O>[CH2:7]([O:6][C:4](=[O:5])[C:3]1[C:2]([OH:1])=[CH:13][CH:12]=[CH:11][C:10]=1[O:14][C:21]1[N:22]=[C:23]([O:25][CH3:26])[CH:24]=[C:19]([O:18][CH3:17])[N:20]=1)[CH:8]=[CH2:9]Participants
6
Procedure
2.0 g of allyl 2,6-dihydroxybenzoate (V) was added to the suspension of 0.4 g of sodium hydride in 50 ml of dimethylformamide and the mixture was stirred for 10 minutes. To this mixture was added 2.2 g of 4,6-dimethoxy-2-methylsulfonylpyrimidine. The reaction mixture was stirred for 5 hours and 50 ml of saturated ammonium chloride solution was added thereto. The reaction solution was then extracted with 200 ml of ethylacetate. The extract was dried over anhydrous sodium sulfate and then distilled under reduced pressure to remove the solvent. The residue was subjected to column chromatography (hexane:ethylacetate=2:1 v/v) on silica gel to obtain 3.0 g (Yield 90%) of the title compound.
Workup
- stirringThe reaction mixture was stirred for 5 hours
- extractionThe reaction solution was then extracted with 200 ml of ethylacetate
- dry with materialThe extract was dried over anhydrous sodium sulfate
- distillationdistilled under reduced pressure
- customto remove the solvent
Sources & evidence
- ORD record
- ord-a3f9da3e9b824052b1ea77b6d1c69bc7
- Source dataset
- uspto-grants-1996_05
- Patent number
- US05521146
Reaction notes
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