Acetic Acid → 1-Benzyloxy-4-(2-nitro-ethyl)-benzene

HRID 640076

Reaktionsgleichung

Reaktionsgleichung von HRID 640076
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12](/[CH:15]=[CH:16]/[N+:17]([O-:19])=[O:18])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(O)(=O)C.CS(C)=O.[BH4-].[Na+]>O>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH2:15][CH2:16][N+:17]([O-:19])=[O:18])=[CH:11][CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 679Dimethyl SulfoxideHCID 4311764Sodium borohydrideHCID 5702926(E)-1-(Benzyloxy)-4-(2-nitrovinyl)benzene

Produkt 1

HCID 247210371-Benzyloxy-4-(2-nitro-ethyl)-benzeneAusbeute 70,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a mixture of 1-benzyloxy-4-((E)-2-nitro-vinyl)-benzene (1.0 g, 3.9 mmol) described in Manufacturing Example 1-1-1, acetic acid (1 mL) and dimethyl sulfoxide (17 mL) was added sodium borohydride (250 mg, 6.3 mmol) at room temperature while cooling appropriately, and the reaction mixture was stirred for 40 minutes at room temperature. Water was added to the reaction mixture. The reaction mixture was partitioned into ethyl acetate and water. 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 NH silica gel column chromatography (ethyl acetate:heptane=1:3) to obtain the title compound (710 mg, 70%).

Aufarbeitung

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

Quellen und Nachweise

ORD-Eintrag
ord-fa700799987242de8e389e439e3458f5
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07691882B2

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