Hydrochloric Acid → 3-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-(ethoxycarbonyl)methoxypyridine

HRID 1862335Notes

Reaction equation

HRID 1862335 reaction equation
[OH:1][C:2]1[C:3]([O:8][CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])=[N:4][CH:5]=[CH:6][CH:7]=1.F[C:16]1[CH:21]=[C:20]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])[C:19]([F:35])=[CH:18][C:17]=1[N+:36]([O-:38])=[O:37].C(=O)([O-])[O-].[K+].[K+].[Cl-].[Na+].Cl>CN(C)C=O>[F:35][C:19]1[C:20]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])=[CH:21][C:16]([O:1][C:2]2[C:3]([O:8][CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])=[N:4][CH:5]=[CH:6][CH:7]=2)=[C:17]([N+:36]([O-:38])=[O:37])[CH:18]=1

Participants

7

Reactant 5

HCID 313Hydrochloric AcidHCID 5234Sodium ChlorideHCID 11430Potassium CarbonateHCID 121155092,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzeneHCID 18619272Ethyl 2-[(3-hydroxypyridin-2-yl)oxy]acetate

Product 1

HCID 186191833-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-(ethoxycarbonyl)methoxypyridineYield 67.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
70 °C

Procedure

To a mixture of 10.45 g of 3-hydroxy-2-(ethoxycarbonyl)methoxypyridine, 16.92 g of 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene and 100 ml of N,N-dimethylformamide was added 7.32 g of potassium carbonate, and the mixture was stirred for 2 hours at 70° C. The solution was cooled to room temperature, poured into a mixture of ice water, sodium chloride and hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 17.28 g of 3-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-(ethoxycarbonyl)methoxypyridine [present compound 9-46].

Workup

  1. temperatureThe solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated saline
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-d51e8bcf61a2446382b6451697ef5773
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

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