Ethyl Acetate → (3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amine

HRID 603994Notes

Reaction equation

HRID 603994 reaction equation
[F:1][C:2]([F:34])([F:33])[C:3]1[CH:4]=[C:5]([CH:26]=[C:27]([C:29]([F:32])([F:31])[F:30])[CH:28]=1)[CH2:6][NH:7][CH2:8][C:9]1[CH:14]=[C:13]([C:15]([F:18])([F:17])[F:16])[CH:12]=[CH:11][C:10]=1[N:19]([CH2:22][CH2:23][CH2:24][CH3:25])[CH2:20][CH3:21].[Br:35][C:36]1[CH:37]=[N:38][C:39](Cl)=[N:40][CH:41]=1.C(NC(C(C)C)(C(C)C)C)C.C(OCC)(=O)C>C1(C)C=CC=CC=1.O>[F:1][C:2]([F:33])([F:34])[C:3]1[CH:4]=[C:5]([CH:26]=[C:27]([C:29]([F:32])([F:31])[F:30])[CH:28]=1)[CH2:6][N:7]([C:39]1[N:40]=[CH:41][C:36]([Br:35])=[CH:37][N:38]=1)[CH2:8][C:9]1[CH:14]=[C:13]([C:15]([F:17])([F:16])[F:18])[CH:12]=[CH:11][C:10]=1[N:19]([CH2:22][CH2:23][CH2:24][CH3:25])[CH2:20][CH3:21]

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 6066655-Bromo-2-chloropyrimidineHCID 21936557DiisopropyldiethylamineHCID 86626753{2-[(3,5-Bis-trifluoromethyl-benzylamino)-methyl]-4-trifluoromethyl-phenyl}-butyl-ethyl-amine

Product 1

HCID 86626754(3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amineYield 86.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

{2-[(3,5-Bis-trifluoromethyl-benzylamino)-methyl]-4-trifluoromethyl-phenyl}-butyl-ethyl-amine (4.6 g), 5-bromo-2-chloropyrimidine (3.56 g) and N-ethyldiisopropylethylamine (4.8 ml) are dissolved in toluene (100 ml) and the mixture is heated under reflux overnight. The reaction solution is cooled to room temperature, and thereto are added ethyl acetate and water, 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=19:1→9:1) to give (3,5-bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amine (5.24 g). MS (m/z): 657/659 [M+H]+

Workup

  1. temperaturethe mixture is heated
  2. temperatureunder reflux overnight
  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=19:1→9:1)

Sources & evidence

ORD record
ord-30c70d9c10894479ad0083c082b2ba03
Source dataset
uspto-grants-2011_03
Patent number
US07906517B2

Reaction notes

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