Iodine → 4,4'-Bipyridine
Reaktionsgleichung
[Cl-].[NH+:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C-:8]#[N:9].[Na+].II.[OH-].[Na+]>O.CC(C)=O>[N:2]1[CH:7]=[CH:6][C:5]([C:4]2[CH:5]=[CH:6][N:9]=[CH:8][CH:3]=2)=[CH:4][CH:3]=1Komponenten
6
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 25 °C
Versuchsvorschrift
To 22 parts of 1-[2-pyridyl)ethyl] pyridinium chloride (obtained from pyridine and 2-vinylpyridine as in Example 13) in 100 parts of a mixture of water-acetone (1:1 v/v) was added five parts sodium cyanide, and the mixture stirred 24 hours at 25° C. The resulting dark blue solution was oxidized with an alcoholic iodine solution until the blue color disappeared and 100 parts 40% sodium hydroxide added. Cleavage of the quat and workup as in Example 15 gave 4.9 parts 4,4'-bipyridine.
Quellen und Nachweise
- ORD-Eintrag
- ord-8f40871ea4d94657a6ba8d140964d24f
- Quelldatensatz
- uspto-grants-1979_06
- Patentnummer
- US04158093
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