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

HRID 979470Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 979470
[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-287aa9c80bba47cabf3022a1720e4cb2
Quelldatensatz
uspto-grants-1987_05
Patentnummer
US04668673

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