Studies on the preparation of aminobipyridines and bipyridine sultams via an intramolecular free radical pathway
Recio, Javier; Filace, Fabiana; Gala, Elena; Pérez-Redondo, Adrián; Álvarez-Builla, Julio; Burgos, Carolina
DOI:
10.1039/d0ra02026e
Datum:
2020-03-04
Zusammenfassung
A variety of aminated bipyridines and bipyridine sultams are prepared by intramolecular radical [1,5]-ipso and [1,6]-ortho substitutions, using a sulfonamide as a linker to connect the pyridyl radical to the pyridine under attack. For the cases studied, different regiochemistries are observed depending on the initial position of the sulfonamide linker.
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