p-Toluenesulfonic acid → 2-(2-Fluoro-6-iodo-phenyl)-[1,3]dioxane
Reaktionsgleichung
[F:1][C:2]1[CH:9]=[CH:8][CH:7]=[C:6]([I:10])[C:3]=1[CH:4]=[O:5].[CH2:11](O)[CH2:12][CH2:13][OH:14].C1(C)C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[F:1][C:2]1[CH:9]=[CH:8][CH:7]=[C:6]([I:10])[C:3]=1[CH:4]1[O:14][CH2:13][CH2:12][CH2:11][O:5]1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
2-Fluoro-6-iodo-benzaldehyde (3.0 g, 12 mmol), 1,3-propanediol (1.3 ml, 18 mmol), and para-toluenesulfonic acid (342 mg, 1.8 mmol) is heated at reflux in toluene (60 ml) using a Dean-Stark apparatus for 2 hours. The organic layer is washed with brine and dried over MgSO4 and evaporated to afford the desired compound (3.65 g).
Aufarbeitung
- customfor 2 hours
- washThe organic layer is washed with brine
- dry with materialdried over MgSO4
- customevaporated
Quellen und Nachweise
- ORD-Eintrag
- ord-f6d8481666b6409891eb7c832c162c2f
- Quelldatensatz
- uspto-grants-2010_03
- Patentnummer
- US07683075B2
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