Formamide → 6-Hydroxy-3,4-dihydroisoquinoline-2(1H)-carbaldehyde
Reaktionsgleichung
Br.[OH:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH2:9][NH:8][CH2:7][CH2:6]2.[CH:13](N)=[O:14]>O>[CH:13]([N:8]1[CH2:7][CH2:6][C:5]2[C:10](=[CH:11][CH:12]=[C:3]([OH:2])[CH:4]=2)[CH2:9]1)=[O:14]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 100 °C
Versuchsvorschrift
46.0 g of 1,2,3,4-tetrahydro-6-hydroxy-isoquinoline-hydrobromide are reacted with 85 ml of formamide for 1 hour at 140° C. with stirring. After cooling to 100° C., 216 ml of water are added, whereby the reaction product crystallizes. 34.0 g of 2-formyl-1,2,3,4-tetrahydro-6-hydroxy-isoquinoline are obtained. m.p. = 185.5° - 186° C. (ethanol).
Aufarbeitung
- customwhereby the reaction product crystallizes
Quellen und Nachweise
- ORD-Eintrag
- ord-3aa79ced6f8a404c8534bcfc361a94b0
- Quelldatensatz
- uspto-grants-1977_03
- Patentnummer
- US04013663
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