ChemInform Abstract: Preparation and Structural Properties of Large-Cavity Peraza Macrocycles Containing Pyridine, Phenanthroline, or Piperazine Subcyclic Units.
Abstract
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ChemInform Abstract
Reaction of the pyridinedicarbaldehyde (Ia) or the diacetylpyridine ( Ib) with the triamine (II) followed by reduction with sodium borohydride forms the macrocycles (III). The tetraazomethines (VI) are prepared by reaction of the phenanthrolinedicarbaldehyde (IV) with the diamines (V). Reaction of N,N′-di(chloromethylcarbonyl)piperazine (VII) with piperazine (VIII) yields the macrocycles (IX) and (X).
