Bromine → 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

HRID 576777Notes

Reaction equation

HRID 576777 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]([C:9]2[N:13]([C:14]3[CH:21]=[CH:20][C:17]([C:18]#[N:19])=[CH:16][CH:15]=3)[N:12]=[CH:11][CH:10]=2)=[C:5]([CH3:22])[N:4]([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[CH:24]=2)[C:3]1=[O:33].[Br:34]Br.S([O-])([O-])(=O)=S.[Na+].[Na+]>C(O)(=O)C>[Br:34][C:10]1[CH:11]=[N:12][N:13]([C:14]2[CH:15]=[CH:16][C:17]([C:18]#[N:19])=[CH:20][CH:21]=2)[C:9]=1[C:6]1[C:7](=[O:8])[N:2]([CH3:1])[C:3](=[O:33])[N:4]([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:30])([F:31])[F:32])[CH:24]=2)[C:5]=1[CH3:22]

Participants

5

Reactant 3

HCID 24408BromineHCID 24477Sodium ThiosulfateHCID 712514174-[5-[3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl]-1H-pyrazol-1-yl]benzonitrile

Product 1

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

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

To a solution of 4-(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 1) (665 mg) in acetic acid (15 ml) was added at room temperature bromine (0.75 ml) dropwise and the resulting mixture was stirred at room temperature for fifteen minutes. To the reaction mixture was added 10% aqueous sodium thiosulfate solution (30 ml) and the solids formed were filtered and then washed with hexane (50 ml) and dried under reduced pressure to afford 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 (692.8 mg) as brown solid.

Workup

  1. customthe solids formed
  2. filtrationwere filtered
  3. washwashed with hexane (50 ml)
  4. customdried under reduced pressure

Sources & evidence

ORD record
ord-82ede62544714ba1ae1a04d00b2e8d0f
Source dataset
uspto-grants-2015_05
Patent number
US09040516B2

Reaction notes

Loading…