Triethylamine → 3,4-Dihydro-6-(3,4-dimethoxyphenyl)-2-[4-(4-fluorobenzoyl)piperazin-1-yl]-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine

HRID 4331

Reaction equation

HRID 4331 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[N:16]=[C:15]([N:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)[N:14]([CH3:23])[C:13](=[N:24][C:25]3[C:30]([CH3:31])=[CH:29][C:28]([CH3:32])=[CH:27][C:26]=3[CH3:33])[CH:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].C(N(CC)CC)C.[F:41][C:42]1[CH:50]=[CH:49][C:45]([C:46](Cl)=[O:47])=[CH:44][CH:43]=1>O1CCCC1>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[N:16]=[C:15]([N:17]3[CH2:18][CH2:19][N:20]([C:46](=[O:47])[C:45]4[CH:49]=[CH:50][C:42]([F:41])=[CH:43][CH:44]=4)[CH2:21][CH2:22]3)[N:14]([CH3:23])[C:13](=[N:24][C:25]3[C:30]([CH3:31])=[CH:29][C:28]([CH3:32])=[CH:27][C:26]=3[CH3:33])[CH:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 678794-Fluorobenzoyl chlorideHCID 201523163,4-Dihydro-6-(3,4-dimethoxyphenyl)-3-methyl-2-(1-piperazinyl)-4-(2,4,6-trimethylphenylimino)pyrimidine

Product 1

HCID 201522853,4-Dihydro-6-(3,4-dimethoxyphenyl)-2-[4-(4-fluorobenzoyl)piperazin-1-yl]-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a suspension of 3,4-dihydro-6-(3,4-dimethoxyphenyl)-3-methyl-2-(1-piperazinyl)-4-(2,4,6-trimethylphenylimino)pyrimidine (0.31 g) in tetrahydrofuran (10 ml) were added triethylamine (0.11 ml) and 4-fluorobenzoyl chloride (0.69 ml). The mixture was stirred at ambient temperature for an hour and the reaction was quenched by adding methanol (5 ml). After evaporation of the solvent, the residue was dissolved in ethyl acetate. The solution was washed with water, dried over magnesium sulfate and evaporated in vacuo. The residue was chromatographed on silica gel using a mixture of chloroform and methanol (95:5) to give 3,4-dihydro-6-(3,4-dimethoxyphenyl)-2-[4-(4-fluorobenzoyl)piperazin-1-yl]-3-methyl-4-(2,4,6-trimethylphenylimino)pyrimidine (0.34 g).

Workup

  1. customthe reaction was quenched
  2. additionby adding methanol (5 ml)
  3. customAfter evaporation of the solvent
  4. dissolutionthe residue was dissolved in ethyl acetate
  5. washThe solution was washed with water
  6. dry with materialdried over magnesium sulfate
  7. customevaporated in vacuo
  8. customThe residue was chromatographed on silica gel using
  9. additiona mixture of chloroform and methanol (95:5)

Sources & evidence

ORD record
ord-dd36e74f535546a1be9f4ec4be1e5354
Source dataset
uspto-grants-1988_02
Patent number
US04725600

Linked notes

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