Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China.
Ultrason Sonochem. 2014 Mar;21(2):520-6. doi: 10.1016/j.ultsonch.2013.08.022. Epub 2013 Sep 7.
The reaction of aldehydes and o-phenylenediamine for the preparation of 2-benzimidazoles has been studied using hydrogen peroxide as an oxidant under ultrasound irradiation at room temperature in this paper. The combination of substoichiometric sodium iodide and ammonium molybdate as co-catalysts, together with using small amounts of hydrogen peroxide, makes this transformation very efficient and attractive under ultrasound. Thus, a mild, green and efficient method is established to carry out this reaction in high yield.
本文研究了在室温下超声辐射条件下，用过氧化氢作为氧化剂，由醛和邻苯二胺反应制备 2-苯并咪唑。本文采用亚化学计量的碘化钠和钼酸铵作为共催化剂，并用少量的过氧化氢，使该转化在超声条件下非常高效和有吸引力。因此，建立了一种温和、绿色、高效的方法，可高产率地进行此反应。
