Sodium hydride → HCID 18759306, compound

HRID 1280356Notes

Reaction equation

HRID 1280356 reaction equation
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([OH:15])[CH:12]=[CH:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].F[C:19]1[CH:24]=[C:23]([N:25]2[C:30](=[O:31])[CH:29]=[C:28]([C:32]([F:35])([F:34])[F:33])[N:27]([CH3:36])[C:26]2=[O:37])[C:22]([F:38])=[CH:21][C:20]=1[N+:39]([O-:41])=[O:40]>CN(C)C=O>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([CH:12]=[CH:13][CH:14]=1)[O:15][C:19]1[CH:24]=[C:23]([N:25]2[C:30](=[O:31])[CH:29]=[C:28]([C:32]([F:34])([F:35])[F:33])[N:27]([CH3:36])[C:26]2=[O:37])[C:22]([F:38])=[CH:21][C:20]=1[N+:39]([O-:41])=[O:40])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 138048Benzyl 3-hydroxyphenyl etherHCID 121155092,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene

Product 1

HCID 18759306HCID 18759306, compoundYield 52.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent3×

Procedure

A mixture of 1.71 g of 3-benzyloxyphenol and 4.0 ml of N,N-dimethylformamide was added dropwise into a mixture of 0.34 g of sodium hydride and 8.5 ml of N,N-dimethylformamide while cooling with ice, and the mixture was stirred for 20 minutes. A mixture of 3.0 g of 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene (described later, produced in Intermediate Production Example 4) and 7.0 ml of N,N-dimethylformamide was added dropwise at the same temperature, and stirred for 1 hour. This reaction solution was poured into ice water, and extracted with ethyl acetate. The organic layer was washed once with 1N hydrochloric acid and once with saturated saline, and dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 2.4 g of 2-(3-benzyloxyphenoxy)-5-fluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene.

Workup

  1. temperaturewhile cooling with ice
  2. additionwas added dropwise at the same temperature
  3. stirringstirred for 1 hour
  4. extractionextracted with ethyl acetate
  5. washThe organic layer was washed once with 1N hydrochloric acid and once with saturated saline
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-2fb897455c924477a649514b56ef61dc
Source dataset
uspto-grants-2002_09
Patent number
US06451740B2

Reaction notes

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