Abstract
Nitro-, dinitro-, and hydroxynitrophenyl-substituted 4,7-phenanthrolines were reduced with tin(II) chloride in a mixture of acetic and nitric acids to obtain amino, diamino, and hydroxy derivatives of 4,7-phenanthroline. When heated with aromatic aldehydes, the products form azomethines of the 4,7-phenanthroline series.
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