A green and convenient approach toward benzimidazole derivatives and their antimicrobial activity
作者:Jing Wen、Yun-Lei Luo、Hui-Zhen Zhang、Huan-Huan Zhao、Cheng-He Zhou、Gui-Xin Cai
DOI:10.1016/j.cclet.2015.12.014
日期:2016.3
Abstract N-Alkylated benzimidazole derivatives have been synthesized via the aza-Michael addition reactions of 1H-benzimidazoles to α,β-unsaturated compounds in water and palladium acetate obviously promoted these transformations. The reported method, overcoming the inactivation of palladium under the equivalent nitrogenous conditions, has the advantages of convenient manipulation, atom-economy, as well
摘要通过1H-苯并咪唑与水和乙酸钯中的α,β-不饱和化合物的aza-Michael加成反应合成了N-烷基化的苯并咪唑衍生物,明显促进了这些转变。该报道的方法克服了在等效氮条件下使钯失活的优点,具有操作方便,原子经济和环境友好的优点。生物活性结果表明,3-(5,6-二甲基-1H-苯并[d]咪唑-1-基)丙酸丁酯(3c)对枯草芽孢杆菌(MIC = 16μg/ mL)和变形杆菌(( MIC = 8μg/ mL)。因此,该方法将有助于在温和条件下基于苯并咪唑支架构建各种潜在的生物活性化合物。