Sodium hydride → 4-(tert-butyl)-N-[3-{2-[(5-chloro-2-pyrimidinyl)oxy]ethoxy}-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide

HRID 1368577Notes

Reaction equation

HRID 1368577 reaction equation
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:14][C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][OH:24])[C:16]=2[C:25]2[CH:30]=[CH:29][C:28]([CH3:31])=[CH:27][CH:26]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[Cl:34][C:35]1[CH:36]=[N:37][C:38](S(C)(=O)=O)=[N:39][CH:40]=1>O1CCCC1.CC(N(C)C)=O.O>[C:1]([C:5]1[CH:6]=[CH:7][C:8]([S:11]([NH:14][C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][O:24][C:38]3[N:39]=[CH:40][C:35]([Cl:34])=[CH:36][N:37]=3)[C:16]=2[C:25]2[CH:30]=[CH:29][C:28]([CH3:31])=[CH:27][CH:26]=2)(=[O:12])=[O:13])=[CH:9][CH:10]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 3

HCID 24758Sodium hydrideHCID 27277255-Chloro-2-methanesulfonylpyrimidineHCID 222820434-(tert-butyl)-N-[3-(2-hydroxyethoxy)-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide

Product 1

HCID 98506784-(tert-butyl)-N-[3-{2-[(5-chloro-2-pyrimidinyl)oxy]ethoxy}-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamideYield 69.2%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent2×HCID 31374DimethylacetamideSolvent

Procedure

To 4-(tert-butyl)-N-[3-(2-hydroxyethoxy)-1-methyl-4-(4-methylphenyl)-1H-pyrazol-5-yl]benzenesulfonamide (Example 2) (196 mg) in tetrahydrofuran (2.5 ml) at room temperature under an atmosphere of nitrogen was added sodium hydride (60% dispersion in oil, 37 mg) and the mixture was stirred for 5 minutes. To the mixture was added a solution of 5-chloro-2-methylsulphonylpyrimidine (94 mg) in tetrahydrofuran (5 ml) and dimethylacetamide (0.5 ml) the mixture was stirred for a further 48 hrs. The reaction was diluted with water (200 ml) and extracted with dichloromethane (3×50 ml). The organic fractions were combined, washed with brine (10 ml), dried over magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica (20 g) eluted with ether:hexane (4:1) to yield the title compound as a white solid (170 mg).

Workup

  1. stirringwas stirred for a further 48 hrs
  2. extractionextracted with dichloromethane (3×50 ml)
  3. washwashed with brine (10 ml)
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by column chromatography on silica (20 g)
  8. washeluted with ether:hexane (4:1)

Sources & evidence

ORD record
ord-6facb2e9514447b49f35d21ae1222122
Source dataset
uspto-grants-2003_06
Patent number
US06573270B1

Reaction notes

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