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

作　　者：Zinia Jaman Mohammad R. Karim Tasneem A. Siddiquee Aminul H. Mirza Mohamad A. Ali 

机构地区：[1]Chemistry, Faculty of Science, University Brunei Darussalam, Brunei Darussalam, Sudan [2]Department of Chemistry, Tennessee State University, Nashville, USA

出　　处：《International Journal of Organic Chemistry》2013年第3期214-219,共6页有机化学国际期刊（英文）

摘　　要：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.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.

关 键 词：5-Nitro-1 10-PHENANTHROLINE DIALDEHYDE 5-Bromo-1 Schiff Bases S-Alkyl/Aryldithiocarbazates THIOSEMICARBAZIDE 

分 类 号：O6[理学—化学]