作者:Taku Kitanosono、Soo Min Cho、Shū Kobayashi
DOI:10.1016/j.tet.2018.10.023
日期:2018.12
The use of negatively charged aluminosilicate layers and Lewis acidic cations embedded therein allowed efficient cyclocondensation of bisamines with water-soluble aldehydes to be achieved in water. The protocol does not involve acidic or reflux conditions, thereby avoiding undesired byproduct formation. The use of water as a reaction medium is indispensable to ensure high reaction yields.
带负电的硅铝酸盐层和嵌入其中的路易斯酸性阳离子的使用允许双胺与水溶性醛在水中的有效环缩合。该方案不涉及酸性或回流条件,从而避免了不希望的副产物形成。为了确保高反应产率,使用水作为反应介质是必不可少的。