Nanoporous TiO<sub>2</sub> containing an ionic liquid bridge as an efficient and reusable catalyst for the synthesis of <i>N</i>,<i>N</i>′-diarylformamidines, benzoxazoles, benzothiazoles and benzimidazoles
作者:M. Mazloumi、F. Shirini、O. Goli-Jolodar、M. Seddighi
DOI:10.1039/c8nj00171e
日期:——
In this work, a green and efficient procedure is reported for the preparation of N,N'-diarylformamidines, benzoxazoles, benzothiazoles, and benzimidazoles using nanoporous TiO2 containing an ionic liquid bridge. This reagent is prepared via the modification of nanoporous TiO2 with bis-3-(trimethoxysilylpropyl)-ammonium hydrogen sulfate (TiO2-[bip]-NH2+ HSO4−). The procedure gave the products in excellent
在这项工作中,报道了使用含有离子液体桥的纳米多孔TiO 2制备N,N'-二芳基甲am,苯并恶唑,苯并噻唑和苯并咪唑的绿色高效方法。这种试剂制备通过纳米多孔TiO 2的变形例2与双-3-(三甲氧基甲硅烷) -铵硫酸氢(的TiO 2 - [BIP] -NH 2 + HSO 4 - )。该方法在无溶剂条件下以非常短的反应时间以优异的收率得到了产物。催化剂的可重复使用性是所报道方法的另一个重要特征。