ABSTRACT The combination of a marcocyclic precursor and a sodium ion, sodium 2, 6-diformyl-4-substitutedphenolate, offers an effective template to carry out Schiff base cyclocondensation with a quite number of polyamines. Followed by transmetallation with heavy metals has resulted in the production of several classes of marcocyclic complexes which have been structurally characterized. The ligands are involved with [2+ 2], [2+3], 3+3] and [4+4] condensation modes of macrocyclic precursors with multi-amines. It has been found so far that the sodium template presents several unique features such as a ‘versatile’ template regardless of ring sizes, easy replacement by transition metals and induced certain group elimination during the reaction.
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