Unexpected formation of a novel pyridinium-containing catecholate ligand and its manganese(iii) complex
作者:Tippu S. Sheriff、Michael Watkinson、Majid Motevalli、Jocelyne F. Lesin
DOI:10.1039/b915747f
日期:——
Nucleophilic aromatic substitution of tetrachloro-o-benzoquinone by pyridine and reduction of the o-quinone to the catechol by hydroxylamine forms 1,2-dihydroxy-3,5,6-trichlorobenzene-4-pyridinium chloride. This compound reacts with manganese(II) acetate in air to form chlorobis(3,5,6-trichlorobenzene 4-pyridinium catecholate)manganese(III), which represents the first complex of this ligand class to be