Copper borate (CuB<sub>4</sub>O<sub>7</sub>)-promoted multi-component green synthesis of 2,4,5-triarylimidazole derivatives and evidence of <i>in situ</i> conversion of copper borate (CuB<sub>4</sub>O<sub>7</sub>) into Cu(OAc)<sub>2</sub> in the presence of NH<sub>4</sub>OAc
5-triarylimidazole has been developed under solvent-free conditions using unconventional CuB4O7 as a promoter. This green approach encouragingly provides access to a library of 2,4,5-tri-arylimidazole. Also, we have been able to isolate the compound (5) and (6) in situ, which provides an insight into the direct conversion of CuB4O7 into copper acetate in the presence of NH4OAc under solvent-free condition. The
使用非常规 CuB 4 O 7作为促进剂,在无溶剂条件下开发了一种绿色、高效、简单的 2,4,5-三芳基咪唑三组分合成方法。这种绿色方法令人鼓舞地提供了对 2,4,5-三芳基咪唑库的访问。此外,我们还能够原位分离出化合物( 5 ) 和( 6 ) ,这为在NH 4存在下CuB 4 O 7直接转化为乙酸铜提供了深入的了解。OAc在无溶剂条件下。该方案的主要优点包括反应程序简单,反应时间短,并且无需使用任何繁琐的分离方法即可轻松处理产物。