6-[5-Cyano-2-hydroxy-1-(2-methylpropenyl)benzyl]pyrazine 1-oxide → 2-(6-cyano-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-4-yl)pyrazine 1-oxide
Reaktionsgleichung
[C:1]([C:3]1[CH:4]=[CH:5][CH:6]([OH:21])[C:7](C=C(C)C)([CH:16]=1)[CH2:8][C:9]1[N+:14]([O-:15])=[CH:13][CH:12]=[N:11][CH:10]=1)#[N:2]>C(OCC)C>[C:1]([C:3]1[CH:4]=[CH:5][C:6]2[O:21][C:3]([CH3:4])([CH3:16])[CH2:1][CH:8]([C:9]3[CH:10]=[N:11][CH:12]=[CH:13][N+:14]=3[O-:15])[C:7]=2[CH:16]=1)#[N:2]Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
In an analogous manner to that described in the first paragraph of Example 8, from 0.35 g of 6-[5-cyano-2-hydroxy-1-(2-methylpropenyl)benzyl]pyrazine 1-oxide there was obtained 0.02 g of 2-(6-cyano-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-4-yl)pyrazine 1-oxide in the form of a white solid of melting point 166°-168° C. (from diethyl ether).
Quellen und Nachweise
- ORD-Eintrag
- ord-f9929dcb390647fa8036fbc73c9afeab
- Quelldatensatz
- uspto-grants-1990_11
- Patentnummer
- US04971982
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