Ethyl Acetate → (4R)-4-(4-Cyano-2-nitrophenyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carbonitrile

HRID 336918

Reaction equation

HRID 336918 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C@@H:9]2[C:14]([C:15]([NH2:17])=O)=[C:13]([CH3:18])[N:12]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=3)[C:11](=[O:29])[NH:10]2)=[C:5]([N+:30]([O-:32])=[O:31])[CH:4]=1)#[N:2].[OH-].COC(NS([N+](CC)(CC)CC)(=O)=O)=O.C(OCC)(=O)C>C1COCC1>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C@@H:9]2[C:14]([C:15]#[N:17])=[C:13]([CH3:18])[N:12]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:27])([F:28])[F:26])[CH:20]=3)[C:11](=[O:29])[NH:10]2)=[C:5]([N+:30]([O-:32])=[O:31])[CH:4]=1)#[N:2]

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 11032497(Methoxycarbonylsulfamoyl)triethylammonium hydroxideHCID 58133767(4R)-4-(4-Cyano-2-nitrophenyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxamide

Product 1

HCID 66601717(4R)-4-(4-Cyano-2-nitrophenyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carbonitrile

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

The reaction was carried out under argon. (4R)-4-(4-Cyano-2-nitrophenyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxamide (5.0 g, 10.1 mmol; purity 90%) was initially charged in dry THF (135 ml), methoxycarbonylsulfamoyltriethylammonium hydroxide (Burgess reagent; 3.85 g, 16.17 mmol; 1.6 eq.) was added and the mixture was then stirred at RT for 2 h. Ethyl acetate (300 ml) was then added to the reaction mixture. The organic phase was washed twice with water and once with saturated sodium chloride solution, dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude product was recrystallized from cyclohexane/ethyl acetate. The crystals obtained were dried under high vacuum. The title compound was obtained as a solid (2.8 g, 65% of theory).

Workup

  1. washThe organic phase was washed twice with water and once with saturated sodium chloride solution
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe crude product was recrystallized from cyclohexane/ethyl acetate
  6. customThe crystals obtained
  7. customwere dried under high vacuum

Sources & evidence

ORD record
ord-ee83ba29a6da4e07926c280e76b81b90
Source dataset
uspto-grants-2014_11
Patent number
US08889700B2

Linked notes

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