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H. Astroem and R. Stroemberg, “Synthesis of New OBAN’s and Further Studies on Positioning of the Catalytic Group,” Organic & Biomolecular Chemistry, Vol. 2, No. 13, 2004, pp. 1901-1907. doi:10.1039/b403652b

has been cited by the following article:

• TITLE: Synthesis of 5-Substituted 2, 9-Dimethyl-1,10-Phenanthroline Dialdehydes and Their Schiff Bases with Sulfur-Containing Amines

  AUTHORS: Zinia Jaman, Mohammad R. Karim, Tasneem A. Siddiquee, Aminul H. Mirza, Mohamad A. Ali

  KEYWORDS: 5-Nitro-1, 10-Phenanthroline Dialdehyde; 5-Bromo-1, 10-Phenanthroline Dialdehyde; Schiff Bases; S-Alkyl/Aryldithiocarbazates; Thiosemicarbazide

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.3 No.3, September 25, 2013

  ABSTRACT: Eight new Schiff bases of 5-nitro and 5-bromo-substituted 1,10-phenanthroline-2,9-dicarboxaldehydes with sulfur-containing amines, thiosemicarbazide, S-alkyl/aryl dithiocarbazates and 2-mercaptoaniline have been synthesized and characterized by a variety of spectroscopic methods. The condensation reactions of the dialdehydes with the amines were carried out both in the presence and absence of conc. sulfuric acid. A significant increase in yield of the Schiff bases was observed when the reactions were carried out in the presence of sulfuric acid.