Diphenyl carbonate → HCID 58138415, compound

HRID 1469124Notes

Reaction equation

HRID 1469124 reaction equation
[NH2:1][C:2]1[C:7]([F:8])=[CH:6][N:5]([S:9]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)(=[O:11])=[O:10])[C:4](=[O:18])[N:3]=1.[H-].[Na+].[C:21](=O)([O:29]C1C=CC=CC=1)[O:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>C1COCC1.CCOC(C)=O>[C:23]1([O:22][C:21](=[O:29])[NH:1][C:2]2[C:7]([F:8])=[CH:6][N:5]([S:9]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)(=[O:10])=[O:11])[C:4](=[O:18])[N:3]=2)[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

Participants

6

Reactant 3

HCID 7597Diphenyl carbonateHCID 24758Sodium hydrideHCID 58138399HCID 58138399, compound

Product 1

HCID 58138415HCID 58138415, compoundYield 24.3%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of 4-amino-1-benzenesulfonyl-5-fluoro-1H-pyrimidin-2-one (0.20 g, 0.74 mmol) in anhydrous THF (3 mL) was added NaH (0.044 g of 60 wt % suspension in mineral oil, 1.11 mmol) at 0° C. After gas evolution had subsided, the mixture was transferred via cannula to an ice-cold mixture of diphenyl carbonate (1.5 g, 7.4 mmol) in anhydrous THF (5 mL) and stirred for 6 h. The reaction was diluted with EtOAc (25 mL) and the resulting solution was washed with satd aq NH4Cl (15 mL) and brine (15 mL). The organic phase was dried over Na2SO4, filtered, and the solvent evaporated. The residue was purified by precipitation from MeOH and Et2O to give (1-benzenesulfonyl-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl)carbamic acid phenyl ester as a light brown solid (0.070 g, 24%): mp 182-185° C.; 1H NMR (400 MHz, DMSO-d6) δ 7.95 (m, 2H), 7.87 (d, J=7.0 Hz, 1H), 7.71 (d, J=7.5 Hz, 1H), 7.61 (t, J=7.7 Hz, 2H), 7.33 (t, J=7.9 Hz, 2H), 7.15 (d, J=7.3 Hz, 1H), 7.06 (d, J=7.6 Hz, 2H); ESIMS m/z 390 ([M+H]+), 388 ([M−H]−).

Workup

  1. washthe resulting solution was washed with satd aq NH4Cl (15 mL) and brine (15 mL)
  2. dry with materialThe organic phase was dried over Na2SO4
  3. filtrationfiltered
  4. customthe solvent evaporated
  5. customThe residue was purified by precipitation from MeOH and Et2O

Sources & evidence

ORD record
ord-4969b0de181e4eddb3c1dd20288fbdf7
Source dataset
uspto-grants-2015_04
Patent number
US09006259B2

Reaction notes

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