Hydrochloric Acid → 4-(4-acetyl-5-(3,6-dimethyl-2,4-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazol-1-yl)benzonitrile

HRID 576790Notes

Reaction equation

HRID 576790 reaction equation
Br[C:2]1[CH:3]=[N:4][N:5]([C:27]2[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=2)[C:6]=1[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([Sn](CCCC)(CCCC)[C:40]([O:42]CC)=[CH2:41])CCC.Cl.C(OCC)(=O)C>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:40]([C:2]1[CH:3]=[N:4][N:5]([C:27]2[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=2)[C:6]=1[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])(=[O:42])[CH3:41]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8857Ethyl Acetate2×HCID 619414Stannane, tributyl(1-ethoxyethenyl)-HCID 867238984-(4-bromo-5-(3,6-dimethyl-2,4-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazol-1-yl)benzonitrile

Product 1

HCID 867239004-(4-acetyl-5-(3,6-dimethyl-2,4-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazol-1-yl)benzonitrile

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 4-(4-bromo-5-(3,6-dimethyl-2,4-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazol-1-yl)benzonitrile (prepared in Example 93) (54.6 mg) in 1,4-dioxane (1.0 ml) were added tetrakis(triphenylphosphine)palladium (23.8 mg) and tributyl(1-ethoxyvinyl)tin (103.4 μl) and the resulting mixture was stirred for one hour with heating in microwave instrument (120° C.). To the reaction mixture were then added 1M hydrochloric acid (1 mL) and ethyl acetate (2 ml) and the resulting mixture was stirred at room temperature for one hour. To the reaction mixture was ethyl acetate (50 ml) and the mixture was washed with 10% aqueous potassium carbonate solution (30 ml) and saturated saline (30 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-(4-acetyl-5-(3,6-dimethyl-2,4-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazol-1-yl)benzonitrile (19.0 mg) as white solid.

Workup

  1. stirringthe resulting mixture was stirred at room temperature for one hour
  2. washthe mixture was washed with 10% aqueous potassium carbonate solution (30 ml) and saturated saline (30 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-4fe5679d257344e5bbde74310cd929ed
Source dataset
uspto-grants-2015_05
Patent number
US09040516B2

Reaction notes

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