Nitric Acid → 1-(5-(Benzyloxy)-2-hydroxy-3-nitrophenyl)ethanone

HRID 969445Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 969445
[N+:1]([O-:4])(O)=[O:2].[CH2:5]([O:12][C:13]1[CH:14]=[CH:15][C:16]([OH:22])=[C:17]([C:19](=[O:21])[CH3:20])[CH:18]=1)[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1>C(O)(=O)C>[CH2:5]([O:12][C:13]1[CH:14]=[C:15]([N+:1]([O-:4])=[O:2])[C:16]([OH:22])=[C:17]([C:19](=[O:21])[CH3:20])[CH:18]=1)[C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][CH:11]=1

Komponenten

4

Edukt 2

HCID 944Nitric AcidHCID 128709281-[5-(Benzyloxy)-2-hydroxyphenyl]ethan-1-one

Produkt 1

HCID 210728231-(5-(Benzyloxy)-2-hydroxy-3-nitrophenyl)ethanone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

18 mL fuming nitric acid are added dropwise to a solution of 81.5 g (0.34 mol) 1-(5-benzyloxy-2-hydroxy-phenyl)-ethanone (known from U.S. Pat. No. 4,460,581) in 700 mL acetic acid while being cooled with the ice bath such that the temperature does not exceed 20° C. Then the reaction mixture is stirred for two hours at ambient temperature, poured onto ice water and filtered. The product is recrystallised from isopropanol, suction filtered and washed with isopropanol and diisopropylether. Yield: 69.6 g (72%); mass spectroscopy [M+H]+=288.

Aufarbeitung

  1. customdoes not exceed 20° C
  2. additionpoured onto ice water
  3. filtrationfiltered
  4. customThe product is recrystallised from isopropanol, suction
  5. filtrationfiltered
  6. washwashed with isopropanol and diisopropylether

Quellen und Nachweise

ORD-Eintrag
ord-17a98b5bb0ed4a51aa88697a89c59aaa
Quelldatensatz
uspto-grants-2007_12
Patentnummer
US07307076B2

Notizen zur Reaktion

Wird geladen…