Sodium Chloride → t-Butyl [2-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}phenoxy]acetate

HRID 1241269Notes

Reaction equation

HRID 1241269 reaction equation
[Cl:1][C:2]1[CH:15]=[C:14]([F:16])[C:13]([N:17]2[C:22](=[O:23])[CH:21]=[C:20]([C:24]([F:27])([F:26])[F:25])[N:19]([CH3:28])[C:18]2=[O:29])=[CH:12][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[OH:11].C(=O)([O-])[O-].[K+].[K+].Cl[CH2:37][C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39].[Cl-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:15]=[C:14]([F:16])[C:13]([N:17]2[C:22](=[O:23])[CH:21]=[C:20]([C:24]([F:25])([F:26])[F:27])[N:19]([CH3:28])[C:18]2=[O:29])=[CH:12][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[O:11][CH2:37][C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39]

Participants

7

Reactant 4

HCID 5234Sodium ChlorideHCID 11430Potassium CarbonateHCID 66052tert-Butyl chloroacetateHCID 121155072-(2-Chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}phenol

Product 1

HCID 18759281t-Butyl [2-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}phenoxy]acetateYield 4,106.7%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

First, 0.20 g of 2-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}phenol was dissolved in 2 ml of N,N-dimethylformamide, to which 0.083 g of potassium carbonate was added, and the mixture was stirred at room temperature for 50 minutes. Then, 0.077 g of t-butyl chloroacetate was added, and the mixture was stirred at 40° C. to 60° C. for 2 hours. After left for cooling, ice water was poured into the reaction mixture, and after addition of ethyl acetate and saturated aqueous sodium chloride solution, the mixture was subjected to phase separation. The organic layer was washed with saturated aqueous sodium chloride solution, dried over magnesium sulfate, and then concentrated. The residue was subjected to silica gel column chromatography (eluent: n-hexane/ethyl acetate=6/1) to give 10.39 g of t-butyl [2-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}phenoxy]acetate (compound a-121).

Workup

  1. additionwas added
  2. stirringthe mixture was stirred at 40° C. to 60° C. for 2 hours
  3. waitAfter left
  4. temperaturefor cooling
  5. customthe mixture was subjected to phase separation
  6. washThe organic layer was washed with saturated aqueous sodium chloride solution
  7. dry with materialdried over magnesium sulfate
  8. concentrationconcentrated

Sources & evidence

ORD record
ord-9090868186c347a2ae92318aa98b115e
Source dataset
uspto-grants-2006_10
Patent number
US07115544B2

Reaction notes

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