A novel rearrangement of 2,2'-bipyridine N,N'-dioxides
作者:Edwin C. Constable、Kenneth R. Seddon
DOI:10.1016/s0040-4020(01)91821-6
日期:1983.1
The reactions of 2,2'-bipyridine N.N'-dioxides with POCl3 and SO2Cl2 have been investigated, and the products shown to be synthetically useful halogenated derivatives. The presence of substituents in the 4 position favours an intramolecular cyclisation to form dipyrido[1,2-b:2,3-d]-isoxazolinium salts, which have been characterised for the first time.
Novel di- and tetra(pyrazolyl)bipyridine ligands and their Co (II)-complexes for electrochemical applications
作者:Alexander G. Zavozin、Nina I. Simirskaya、Yulia V. Nelyubina、Sergei G. Zlotin
DOI:10.1016/j.tet.2016.10.006
日期:2016.11
ligands have been prepared from available bipyridine N-oxide and N,N′-dioxide nitro derivatives via nucleophilic substitutionreactions. The ligands were converted to the corresponding homoleptic octahedral cobalt (II) complexes with PF6− anions which are of interest as potential redox components for electrochemical applications.