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Synthesis and Characterization of Novel Dialdehydes based on SN2 Reaction of Aromatic Aldehyde

Ali Alasmi and Joumaa Merza

Four new dialdehydes compound (I, II, III, IV) containing oxygen donor atoms have been synthesized in good yields (about 80%) from the condensation reactions of Salicylaldehyde with dibromoethane and bis(2-chloroethyl) ether, And from the condensation reactions of Vanillin with di-bromoethane and bis(2-chloroethyl)ether], respectively. The reaction followed by using thin layer chromatography (T.L.C). Four series of dialdehydes, namely 2,2'-(ethane-1,2-diylbis(oxy)) dibenzaldehyde(I), 2,2'-((oxybis(ethane-2,1-diyl)) bis(oxy)) dibenzaldehyde (II), 4,4'-(ethane-1,2-diylbis (oxy))bis (3-methoxybenzaldehyde)(III), 4,4'-((oxybis (ethane-2,1-diyl))bis(oxy)) bis(3-methoxybenzaldehyde)(IV) were characterized by elemental analyses, FT-IR, UV-Vis, HPLC, 1H,13C-NMR