Water → 1-(2-Nitro-ethyl)-4-phenoxy-benzene

HRID 640122Notes

Reaction equation

HRID 640122 reaction equation
[N+:1](/[CH:4]=[CH:5]/[C:6]1[CH:11]=[CH:10][C:9]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:8][CH:7]=1)([O-:3])=[O:2].[BH4-].[Na+].O>CO>[N+:1]([CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:8][CH:7]=1)([O-:3])=[O:2]

Participants

5

Reactant 3

HCID 962WaterHCID 4311764Sodium borohydrideHCID 190824071-(2-Nitroethenyl)-4-phenoxybenzene

Product 1

HCID 667077101-(2-Nitro-ethyl)-4-phenoxy-benzeneYield 28.2%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 1-((E)-2-nitro-vinyl)-4-phenoxy-benzene (1.40 g, 2.90 mmol, purity: 50%) described in Manufacturing Example 17-1-2 in methanol (15 mL) was added sodium borohydride (274 mg, 7.25 mmol) at room temperature while cooling appropriately under nitrogen atmosphere, which was stirred for 10 minutes at room temperature. Water was then added dropwise at room temperature while cooling appropriately. The reaction mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:heptane=1:5) to obtain the title compound (199 mg, 28%).

Workup

  1. temperaturewhile cooling appropriately under nitrogen atmosphere
  2. temperaturewhile cooling appropriately
  3. extractionThe reaction mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with water and saturated aqueous sodium chloride
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under a reduced pressure
  7. customThe residue was purified by silica gel column chromatography (ethyl acetate:heptane=1:5)

Sources & evidence

ORD record
ord-f5dafa2f4255433daaa32eccce9b39e8
Source dataset
uspto-grants-2010_04
Patent number
US07691882B2

Reaction notes

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