Proton‐ionizable crown compounds. 3 . Synthesis and structural studies of macrocyclic polyether ligands containing a 4‐pyridone subcyclic unit
1986; Wiley; Volume: 23; Issue: 2 Linguagem: Inglês
10.1002/jhet.5570230210
ISSN1943-5193
AutoresJerald S. Bradshaw, Yohji Nakatsuji, Péter Huszthy, Bruce E. Wilson, N. Kent Dalley, Reed M. Izatt,
Tópico(s)Molecular Sensors and Ion Detection
ResumoAbstract New proton‐ionizable macrocyclic polyether ligands containing the 4‐pyridone subcyclic unit have been prepared by reacting 4‐THP blocked‐2,6‐pyridinedimethanol with various oligoethylene glycol ditosylates. The 18‐crown‐6 ligand containing the 4‐pyridone subcyclic unit, 4 , forms stable complexes with alkali metal and organic ammonium cations. The crystal structure of 4 proves the 4‐pyridone structural unit. The crystal structure of the potassium thiocyanate complex of 4 is also reported and shows the complex to contain the 4‐hydroxypyridine unit.
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