Benzimidazole-5,6-dicarboxylic acid → 1H-Furo[3,4-f]benzimidazole-5,7-dione
Reaktionsgleichung
[N:1]1[C:5]2[CH:6]=[C:7]([C:13]([OH:15])=[O:14])[C:8]([C:10]([OH:12])=O)=[CH:9][C:4]=2[NH:3][CH:2]=1.N1C2C(=CC(C(O)=O)=C(C(O)=O)C=2)C=C1>>[N:3]1[C:4]2[CH:9]=[C:8]3[C:10](=[O:12])[O:15][C:13](=[O:14])[C:7]3=[CH:6][C:5]=2[NH:1][CH:2]=1Komponenten
3
Versuchsvorschrift
This was prepared essentially as in example 24 step f except that benzimidazole-5,6-dicarboxylic acid was used as substrate instead of indole-5,6,-dicarboxylic acid.
Quellen und Nachweise
- ORD-Eintrag
- ord-f35db859bab2426295255124151891c9
- Quelldatensatz
- uspto-grants-1999_07
- Patentnummer
- US05919829
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