One-pot synthesis of 2,4,5-triaryl-1H-imidazoles linked 1,4-disubstituted 1,2,3-triazoles based on a merging multicomponent condensation with Huisgen 1,3-dipolar cycloaddition in ionic liquid
作者:Minoo Dabiri、Siyavash Kazemi Movahed、David Ian MaGee
DOI:10.1007/s11164-013-1436-1
日期:2015.6
Abstract A new and efficient approach for the synthesis of 2,4,5-triaryl-1H-imidazoles linked 1,4-disubstitued 1,2,3-triazoles have been developed by multicomponent condensation with Huisgen 1,3-dipolar cycloaddition. A mixture of aromatic propargylated aldehydes, different azides, benzil, and ammonium acetate were condensed in the presence of catalytic amounts of acidic ionic liquid, 1-methylimidazolium
摘要 通过与Huisgen 1,3-偶极环加成反应进行多组分缩合,已开发出一种新的高效合成2,4,5-三芳基-1 H-咪唑的方法,该方法连接了1,4-二取代的1,2,3-三唑。在催化量的酸性离子液体,1-甲基咪唑三氟乙酸盐([Hmim] TFA)和Cu(OAc)2 /抗坏血酸钠的存在下,将芳香族炔丙基化醛,不同的叠氮化物,苯甲醚和乙酸铵的混合物冷凝为负担相应的产品。该程序的特点是操作简便,产品收率好以及无溶剂条件。 图形概要