Russian Chemical Bulletin p. 1280 - 1286 (2001)
Update date:2022-08-03
Topics:
Vasil'ev
Sheremetev
Khoa
Dem'yanets
Dmitriev
Dorokhov
In the presence of nickel acetylacetonate, β-dicarbonyl compounds readily add at the nitrite group of 4-R-3-cyanofurazans to form enaminofurazans. The adducts obtained from 4-amino-3-cyanofurazan underwent intramolecular cyclization on heating with AcOH in EtOH to give furazano[3,4-b]pyridine derivatives in high yields.
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