Acetic Acid → 1-(2-Nitro-ethyl)-3-phenoxy-benzene

HRID 640248Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 640248
CS(C)=O.[N+:5](/[CH:8]=[CH:9]/[C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([O:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:11]=1)([O-:7])=[O:6].C(O)(=O)C.[BH4-].[Na+]>O>[N+:5]([CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([O:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:11]=1)([O-:7])=[O:6]

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 679Dimethyl SulfoxideHCID 4311764Sodium borohydrideHCID 57025051-(2-Nitroethenyl)-3-phenoxybenzene

Produkt 1

HCID 592551701-(2-Nitro-ethyl)-3-phenoxy-benzeneAusbeute 68,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a dimethyl sulfoxide (30.0 mL) solution of 1-((E)-2-nitro-vinyl)-3-phenoxy-benzene (3.60 g, 14.9 mmol) described in Manufacturing Example 64-1-1 and acetic acid (3.00 mL) was added sodium borohydride (902 mg, 23.8 mmol) at room temperature while cooling appropriately under nitrogen atmosphere, which was stirred for 3 minutes. Water was then added dropwise at room temperature while cooling appropriately. The reaction mixture was extracted with ethyl acetate, and the organic layer was washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduce pressure, and the residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=1:5) to obtain the title compound (2.47 g, 68.1%).

Aufarbeitung

  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. filtrationfiltered
  7. concentrationThe filtrate was concentrated under a reduce pressure
  8. customthe residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=1:5)

Quellen und Nachweise

ORD-Eintrag
ord-57a6ba69082e4e0bbedfc2845d10fff8
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07691882B2

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