Clean, reusable and low cost heterogeneous catalyst for amide synthesis
作者:James W. Comerford、James H. Clark、Duncan J. Macquarrie、Simon W. Breeden
DOI:10.1039/b901581g
日期:——
We have developed a heterogeneous silica catalyst that can effectively catalyse amide synthesis from acid and amine, without production of toxic by-products and with the advantage of being readily available, low cost, environmentally benign and reusable.
Direct Amination of Phenols under Metal-Free Conditions
作者:Jun Wu、Jianzhong Yu、Yongtao Wang、Peizhi Zhang
DOI:10.1055/s-0033-1338703
日期:——
Herein, we disclose the metal-free synthesis of arylamines via the direct amination of phenols using aminating reagents. This reaction procedure uses easy accessible aminating reagents and provides a versatile synthetic route to a broad range of arylamines with various functionalities in good to excellent yield. By using a two-step route of amination and oxidative coupling reaction, we synthesized
Mesoporous structured silica – An improved catalyst for direct amide synthesis and its application to continuous flow processing
作者:James W. Comerford、Thomas J. Farmer、Duncan J. Macquarrie、Simon W. Breeden、James H. Clark
DOI:10.3998/ark.5550190.0013.719
日期:——
heterogeneous amidation catalyst based on thermal treatment of amorphous K60 silica, however the loading of catalyst required was high for some reactions. We report her ein our further development of a series of heterogeneous catalysts based on structuredsilica (SBA) that retain all the green credentials of the previously described amorphous silica, but with increased efficiency. These catalysts were then utilised