Sodium hydride → N-{6-[2-(5-Bromo-pyrimidin-2-yloxy)-ethoxy]-2-propyl-5-p-tolyl-pyrimidin-4-yl}-4-tert-butyl-benzenesulfonamide

HRID 2291

Reaction equation

HRID 2291 reaction equation
[H-].[Na+].[C:3]([C:7]1[CH:12]=[CH:11][C:10]([S:13]([NH:16][C:17]2[C:22]([C:23]3[CH:28]=[CH:27][C:26]([CH3:29])=[CH:25][CH:24]=3)=[C:21]([O:30][CH2:31][CH2:32][OH:33])[N:20]=[C:19]([CH2:34][CH2:35][CH3:36])[N:18]=2)(=[O:15])=[O:14])=[CH:9][CH:8]=1)([CH3:6])([CH3:5])[CH3:4].Cl[C:38]1[N:43]=[CH:42][C:41]([Br:44])=[CH:40][N:39]=1>O1CCCC1.CC(N(C)C)=O>[C:3]([C:7]1[CH:8]=[CH:9][C:10]([S:13]([NH:16][C:17]2[C:22]([C:23]3[CH:24]=[CH:25][C:26]([CH3:29])=[CH:27][CH:28]=3)=[C:21]([O:30][CH2:31][CH2:32][O:33][C:38]3[N:43]=[CH:42][C:41]([Br:44])=[CH:40][N:39]=3)[N:20]=[C:19]([CH2:34][CH2:35][CH3:36])[N:18]=2)(=[O:14])=[O:15])=[CH:11][CH:12]=1)([CH3:5])([CH3:6])[CH3:4]

Participants

6

Reactant 3

HCID 24758Sodium hydrideHCID 6066655-Bromo-2-chloropyrimidineHCID 196894984-tert-butyl-N-[6-(2-hydroxyethoxy)-5-(4-methylphenyl)-2-n-propylpyrimidin-4-yl]benzenesulfonamide

Product 1

HCID 19689505N-{6-[2-(5-Bromo-pyrimidin-2-yloxy)-ethoxy]-2-propyl-5-p-tolyl-pyrimidin-4-yl}-4-tert-butyl-benzenesulfonamideYield 91.4%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 31374DimethylacetamideSolvent

Procedure

To a suspension of sodium hydride (0.25 g) in tetrahydrofuran (5 ml) is added dropwise a solution of 4-tert-butyl-N-[6-(2-hydroxyethoxy)-5-(4-methylphenyl)-2-n-propylpyrimidin-4-yl]benzenesulfonamide (1.00 g) in dimethylacetamide (3 ml) and tetrahydrofuran (10 ml) at room temperature, and thereto is added 2-chloro-5-bromopyrimidine (0.56 g), and the mixture is stirred at room temperature for 2.5 hours. The reaction mixture is acidified with ice-cold diluted hydrochloric acid, and extracted with ethyl acetate. The extract is washed, dried, and evaporated to remove the solvent. The resulting oily product is purified by silica gel column chromatography (solvent; chloroform), and crystallized from n-hexane to give 4-tert-butyl-N-[6-{2-(5-bromopyrimidin-2-yloxy)ethoxy}-5-(4-methylphenyl)-2-n-propylpyrimidin-4-yl]benzenesulfonamide (1.21 g) as crystals.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract is washed
  3. customdried
  4. customevaporated
  5. customto remove the solvent
  6. customThe resulting oily product is purified by silica gel column chromatography (solvent; chloroform)
  7. customcrystallized from n-hexane

Sources & evidence

ORD record
ord-f0bfe7cb12de4449ad46b88945212348
Source dataset
uspto-grants-1998_03
Patent number
US05728706

Linked notes

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