An Efficient K<sub>2</sub>CO<sub>3</sub>-Promoted Synthesis of 1-Bromo-2-aryloxyethane Derivatives and Evaluation of Larval Mortality against<i> Aedes aegypti</i>
作者:Yina Pájaro、Ángel Sathicq、Esneyder Puello-Polo、Astrid Pérez、Gustavo Romanelli、Jorge Trilleras
DOI:10.1155/2017/6175315
日期:——
etherification of phenols to obtain 1-bromo-2-aryloxyethane derivatives were evaluated. The compounds were prepared by direct etherification of phenols with 1,2-dibromoethane using anhydrous K2CO3 and acetonitrile as solvent reaction, at 80°C, in a reaction time of 6 h. Under these conditions, excellent yields (71%–94%) were obtained, with low yields of secondary products. The anhydrous K2CO3 was recycled
评价了反应参数对酚醚化得到1-溴-2-芳氧基乙烷衍生物的影响。该化合物是通过苯酚与 1,2-二溴乙烷的直接醚化反应制备的,使用无水碳酸钾和乙腈作为溶剂反应,在 80°C,反应时间为 6 小时。在这些条件下,获得了极好的收率(71%–94%),但副产品收率很低。无水碳酸钾通过简单过滤回收,真空干燥,重复使用。这些化合物通过常规光谱数据(MS 和 NMR)进行表征。杀幼虫活性结果表明,暴露于化合物 1-(2-溴乙氧基)-2-苯基苯 24 小时后,幼虫死亡率为 100%。