N,N'-Dimethylethylenediamine → 1-{5-Chloro-2-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-3-methylimidazolidin-2-one

HRID 2411368Notes

Reaction equation

HRID 2411368 reaction equation
Br[C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C:9]([N:11]1[CH2:16][CH2:15][N:14]([C:17]2[C:22]([CH3:23])=[CH:21][C:20]([CH3:24])=[CH:19][N:18]=2)[CH2:13][CH2:12]1)=[O:10].[CH3:25][N:26]1[CH2:30][CH2:29][NH:28][C:27]1=[O:31].C(=O)([O-])[O-].[Cs+].[Cs+].CNCCNC>[Cu]I.O.O1CCOCC1>[Cl:8][C:6]1[CH:5]=[CH:4][C:3]([C:9]([N:11]2[CH2:16][CH2:15][N:14]([C:17]3[C:22]([CH3:23])=[CH:21][C:20]([CH3:24])=[CH:19][N:18]=3)[CH2:13][CH2:12]2)=[O:10])=[C:2]([N:28]2[CH2:29][CH2:30][N:26]([CH3:25])[C:27]2=[O:31])[CH:7]=1

Participants

8

Reactant 4

HCID 8070N,N'-DimethylethylenediamineHCID 10796Cesium carbonateHCID 5676001-Methylimidazolidin-2-oneHCID 58484730(2-Bromo-4-chlorophenyl)[4-(3,5-dimethylpyridin-2-yl)piperazin-1-yl]methanone

Product 1

HCID 584848021-{5-Chloro-2-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-3-methylimidazolidin-2-oneYield 38.6%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

To a mixture of (2-bromo-4-chlorophenyl) [4-(3,5-dimethylpyridin-2-yl)piperazin-1-yl]methanone (817 mg) described in Preparation Example 167, 1-methylimidazolidin-2-one (300 mg), cesium carbonate (1.30 g) and copper(I) iodide (191 mg) were added 1,4-dioxane (4 mL) and N,N′-dimethylethylenediamine (0.22 mL), and the mixture was stirred for 8 hr under refluxing. After cooling, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The solvent was evaporated, and the residue was purified by column chromatography (ethyl acetate:methanol) to give the title compound (330 mg).

Workup

  1. temperatureunder refluxing
  2. temperatureAfter cooling
  3. extractionthe mixture was extracted with ethyl acetate
  4. customThe solvent was evaporated
  5. customthe residue was purified by column chromatography (ethyl acetate:methanol)

Sources & evidence

ORD record
ord-f8f9fa35d3cb42b0913469084ffedb5e
Source dataset
uspto-grants-2014_08
Patent number
US08816079B2

Reaction notes

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