Triethylamine → 6-Methoxy-3,4-dihydro-2H-1-benzopyran-4-ol

HRID 867862Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 867862
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[O:11][CH:10]=[CH:9][C:8](=[O:12])[C:7]=2[CH:13]=1.C(N(CC)CC)C>[Pd].C(O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[O:11][CH2:10][CH2:9][CH:8]([OH:12])[C:7]=2[CH:13]=1

Komponenten

5

Versuchsvorschrift

A solution of 6-methoxy-4-benzopyranone (31.6 g), triethylamine (4.9 ml) and 10% palladium on carbon (3.16 g) in absolute ethanol (1.7 l) is stirred under an atmosphere of hydrogen for 19 hours. The reaction mixture is filtered and evaporated in vacuo yielding the desired hydrogenated product as a pale yellow liquid.

Aufarbeitung

  1. filtrationThe reaction mixture is filtered
  2. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-b09f7850e1d8464c912ce97e8a11c136
Quelldatensatz
uspto-grants-1988_10
Patentnummer
US04777168

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