Water → 4-[5-[3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl]-1H-pyrazol-1-yl]benzonitrile

HRID 576763Notes

Reaction equation

HRID 576763 reaction equation
C(O[CH:4](OCC)[C:5]#[C:6][C:7]1[C:8](=[O:26])[N:9]([CH3:25])[C:10](=[O:24])[N:11]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]([F:23])([F:22])[F:21])[CH:15]=2)[C:12]=1[CH3:13])C.Cl.[C:31]([C:33]1[CH:38]=[CH:37][C:36]([NH:39][NH2:40])=[CH:35][CH:34]=1)#[N:32].O>CN(C)C=O>[CH3:25][N:9]1[C:8](=[O:26])[C:7]([C:6]2[N:39]([C:36]3[CH:37]=[CH:38][C:33]([C:31]#[N:32])=[CH:34][CH:35]=3)[N:40]=[CH:4][CH:5]=2)=[C:12]([CH3:13])[N:11]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]([F:23])([F:22])[F:21])[CH:15]=2)[C:10]1=[O:24]

Participants

5

Reactant 3

HCID 962WaterHCID 162129624-Cyanophenylhydrazine HydrochlorideHCID 867238635-(3,3-diethoxyprop-1-ynyl)-3,6-dimethyl-1-(3-trifluoromethylphenyl)-pyrimidin-2,4(1H,3H)-dione

Product 1

HCID 712514174-[5-[3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl]-1H-pyrazol-1-yl]benzonitrile

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 5-(3,3-diethoxyprop-1-ynyl)-3,6-dimethyl-1-(3-trifluoromethylphenyl)-pyrimidin-2,4(1H,3H)-dione (prepared in Reference Example 61) and 4-cyanophenylhydrazine hydrochloride (27.9 mg) in N,N-dimethy formamide (2.0 ml) was stirred at 130° C. for seven hours. To the reaction mixture was added water (10 ml) and the resulting mixture was extracted with ethyl acetate (10 ml×2). The organic layer was washed with water (10 ml×2) and saturated saline (10 ml), dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate) to afford 4-[5-[3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl]-1H-pyrazol-1-yl]benzonitrile (17.9 mg).

Workup

  1. extractionthe resulting mixture was extracted with ethyl acetate (10 ml×2)
  2. washThe organic layer was washed with water (10 ml×2) and saturated saline (10 ml)
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate)

Sources & evidence

ORD record
ord-61f99982089e4e6798c5250a323cfe92
Source dataset
uspto-grants-2015_05
Patent number
US09040516B2

Reaction notes

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