Reaktionsgleichung
CC1(C)CO[C:5]2([CH2:12][CH2:11][CH:10]([O:13][C:14]3[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=3[O:21][CH3:22])[CH2:9][CH2:8]2)[O:4]C1.C(O)=O>CC(C)=O>[O:4]=[C:5]1[CH2:8][CH2:9][CH:10]([O:13][C:14]2[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=2[O:21][CH3:22])[CH2:11][CH2:12]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
1 g of 4-(3,3-dimethyl-1,5-dioxaspiro[5.5]undecan-9-yloxy)-3-methoxy-2-methylpyridine is stirred with 20 ml of formic acid and 5 ml of acetone for 5 hours. The residue which remains after concentrating is purified by chromatography on silica gel using ethyl acetate. 0.3 g=41%; m.p.: 56° to 57° C.
Aufarbeitung
- concentrationafter concentrating
- customis purified by chromatography on silica gel
Quellen und Nachweise
- ORD-Eintrag
- ord-91ac38e1cd644fcdbb0f2037b7004087
- Quelldatensatz
- uspto-grants-1998_03
- Patentnummer
- US05723450
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