Catalytic Performance of Immobilized Sulfuric Acid on Silica Gel for N-Formylation of Amines with Triethyl Orthoformate
作者:Sodeeq Aderotimi Salami、Xavier Siwe-Noundou、Rui W. M. Krause
DOI:10.3390/molecules27134213
日期:——
In the search for convenient, green, and practical catalytic methods for the current interest in organic synthesis, a simple, green, and highly efficient protocol for N-formylation of various amines was carried out in the presence of immobilized sulfuric acid on silica gel (H2SO4–SiO2). All reactions were performed in refluxing triethyl orthoformate (65 °C). The product formamides were obtained with
在寻找方便、绿色和实用的催化方法以满足当前对有机合成的兴趣时,在硅胶上固定化硫酸的存在下,对各种胺的N-甲酰化进行了一种简单、绿色和高效的方案。H 2 SO 4 -SiO 2 )。所有反应均在回流的原甲酸三乙酯 (65 °C) 中进行。产品甲酰胺在 4 分钟至 2 小时内以高产率获得。目前的方法是有利的,因为它的反应时间短且产率高。该催化剂是可回收的,催化效率没有显着损失。