Practical synthesis of silyl-protected and functionalized propargylamines using nanostructured Ag/TiO2 and Pt/TiO2 as active recyclable catalysts
作者:Yasser M. A. Mohamed、Hossam A. El Nazer、Eirik Johansson Solum
DOI:10.1007/s11696-018-0604-6
日期:2019.2
Herein we report the use of Ag/TiO2 and Pt/TiO2 nanocatalysts to promote the synthesis of a series of silyl-protected and functionalized propargylamine derivatives through alkyne–amine–aldehyde (A3) coupling under microwave condition using water as solvent in short reaction times with high yielding production. A comparative study between the two catalysts was also demonstrated to prove that Pt/TiO2 nanocomposite has higher potential effect for propargylamines synthesis more than Ag/TiO2. The main features of the investigated method for propargylamines synthesis were easy handling, low catalyst loading as well as the feasibility of catalyst recyclability. The prepared compounds are potentially beneficial with possible pharmacological and biological properties, which that could be used in several disciplines including medicinal and agricultural applications.
在此,我们报告了使用 Ag/TiO2 和 Pt/TiO2 纳米催化剂在微波条件下,以水为溶剂,通过炔-胺-醛(A3)偶联促进一系列硅烷保护和功能化丙炔胺衍生物的合成,反应时间短,产率高。对两种催化剂的比较研究也证明,Pt/TiO2 纳米复合材料比 Ag/TiO2 在合成丙炔胺方面具有更高的潜在效果。所研究的丙炔胺合成方法的主要特点是操作简便、催化剂负载量低以及催化剂可回收利用。所制备的化合物具有潜在的药理和生物特性,可用于多个学科,包括医药和农业应用。