X. Bin
2012
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
2,5-Dimethoxy-4-[(1E)-2-(1H-benzimidazol-2-yl)ethenyl]benzaldehyde was synthesized by condension reaction of 2-methylbenzimidazole(1) with 2,5-dimethoxy-1,4-benzenedicarboxaldehyde(3).The structure was characterized by 1H NMR,IR and ESI-MS.The optimum condensation reaction conditions at the refluxing for 6 h were as follows:1 was 11 mol,n(1):n(3) was 1.1:1.0.The yield was 75.2% under the optimum reaction conditions.