Sodium Bicarbonate → (4-Bromo-2-nitrophenyl)methanol

HRID 641337Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 641337
[Br:1][C:2]1[CH:10]=[CH:9][C:5]([C:6](O)=[O:7])=[C:4]([N+:11]([O-:13])=[O:12])[CH:3]=1.C(=O)([O-])O.[Na+]>O1CCCC1>[Br:1][C:2]1[CH:10]=[CH:9][C:5]([CH2:6][OH:7])=[C:4]([N+:11]([O-:13])=[O:12])[CH:3]=1

Komponenten

4

Edukt 2

HCID 516892Sodium BicarbonateHCID 37744674-Bromo-2-nitrobenzoic acid

Produkt 1

HCID 15906236(4-Bromo-2-nitrophenyl)methanolAusbeute 98,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Borane tetrahydrofuran complex solution (1 M in tetrahydrofuran, 13 mL, 13 mmol) was added over 5 min to a solution of 4-bromo-2-nitrobenzoic acid (2.00 g, 8.13 mmol) at room temperature, then after 72 h the reaction mixture was carefully poured upon sat. aq. sodium hydrogencarbonate solution and extracted with ethyl acetate. The organic layer was dried (MgSO4) and evaporated to produce (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 96%). White solid, 1H-NMR (300 MHz, CDCl3): 8.25 (d, J=1.8, 1H), 7.80 (dd, J=8.1, 1.8, 1H), 7.67 (d, J=8.1, 1H), 4.96 (d, J=6.3, 2H), 2.37 (t, J=6.3, 1H).

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic layer was dried (MgSO4)
  3. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-52066f9b44884696895fb4f63ca68e5e
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07696200B2

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