Sodium hydride → (3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amine

HRID 604018Notes

Reaction equation

HRID 604018 reaction equation
[Br:1][C:2]1[CH:3]=[N:4][C:5]([NH:8][CH2:9][C:10]2[CH:15]=[C:14]([C:16]([F:19])([F:18])[F:17])[CH:13]=[CH:12][C:11]=2[F:20])=[N:6][CH:7]=1.[H-].[Na+].Br[CH2:24][C:25]1[CH:30]=[C:29]([C:31]([F:34])([F:33])[F:32])[CH:28]=[C:27]([C:35]([F:38])([F:37])[F:36])[CH:26]=1.C(=O)(O)[O-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[F:32][C:31]([F:33])([F:34])[C:29]1[CH:30]=[C:25]([CH:26]=[C:27]([C:35]([F:38])([F:36])[F:37])[CH:28]=1)[CH2:24][N:8]([C:5]1[N:4]=[CH:3][C:2]([Br:1])=[CH:7][N:6]=1)[CH2:9][C:10]1[CH:15]=[C:14]([C:16]([F:19])([F:17])[F:18])[CH:13]=[CH:12][C:11]=1[F:20]

Participants

7

Reactant 4

HCID 24758Sodium hydrideHCID 1225733,5-Bis(trifluoromethyl)benzyl bromideHCID 516892Sodium BicarbonateHCID 67087263(5-Bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amine

Product 1

HCID 86626777(3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amineYield 95.5%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

(5-Bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amine (2.10 g) is dissolved in N,N-dimethylformamide (10 ml) and thereto is added sodium hydride (62.7%) (345 mg) under ice-cooling and the mixture is stirred for 30 minutes, and thereto is added 1-bromomethyl-3,5-bis-trifluoromethyl-benzene (2.76 g) and the mixture is stirred at room temperature for 45 minutes. To the reaction solution are added a saturated aqueous sodium bicarbonate solution and ethyl acetate, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=1:0→9:1) to give (3,5-bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amine (3.30 g). MS (m/z): 576/578 [M+H]+

Workup

  1. temperaturecooling
  2. stirringthe mixture is stirred at room temperature for 45 minutes
  3. customthe mixture is separated
  4. washthe organic layer is washed with a saturated brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=1:0→9:1)

Sources & evidence

ORD record
ord-7c9c9ae92159451c9bb9ac1186768604
Source dataset
uspto-grants-2011_03
Patent number
US07906517B2

Reaction notes

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