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Synlett 1997; 1997(8): 897-898
DOI: 10.1055/s-1997-956
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Facile Synthesis of Tetrapyrido[2,3-a:3',2'-c:2",3"-h:3'",2'"-j]phenazine

Pierre Bonhôte* , Mark S. Wrighton
  • *Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
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Publication Date:
31 December 2000 (online)

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The title compound, a potential ligand for transition metals, was prepared by coupling of two 4,7-phenanthroline-5,6-dione molecules in presence of ammonia under reductive conditions. A straightforward synthesis of 4,7-phenanthroline-5,6-dione is also presented.

ligand - heterocycle - pyrazine