Titanium tetrachloride incorporated crosslinked polystyrene copolymer as an efficient and recyclable polymeric Lewis acid catalyst for the synthesis of <i>Β</i>-amino carbonyl compounds at room temperature
作者:Ali Rahmatpour、Reza Eeimen、Niloofar Goodarzi
DOI:10.1080/00397911.2019.1650379
日期:——
shelf-stable acidic, water tolerant material, and it is not easily hydrolyzed by water. Our findings thus show a novel and improved modification of the Mannich type reaction in terms of mild reaction conditions, clean reaction profiles, applicability to various substrates using a simple workup procedure which makes this reaction an interesting alternative to previously applied procedures. The recyclability
摘要 使用一种稳定的紧密结合的复合物,四氯化钛掺入的交联聚苯乙烯,通过芳香醛、苯乙酮和芳香胺的三组分反应,通过曼尼希型反应,一锅合成 β-氨基羰基化合物的高效环保方法共聚物 (PS/TiCl4),作为一种耐水性、可回收和可重复使用的聚合物路易斯酸催化剂,在室温下的乙醇中被报道。聚苯乙烯和 TiCl4 的复合物提供了一种耐贮存的酸性、耐水材料,并且不易被水水解。因此,我们的研究结果表明,在温和的反应条件、清洁的反应曲线、使用简单的后处理程序可适用于各种底物,这使得该反应成为先前应用程序的有趣替代方案。催化剂的可回收性使该协议对环境无害。图形概要