New One-Pot Synthesis of 1,3,5-Triazines: Three-Component Condensation, Dimroth Rearrangement, and Dehydrogenative Aromatization
作者:Ahmad Junaid、Felicia Phei Lin Lim、Edward R. T. Tiekink、Anton V. Dolzhenko
DOI:10.1021/acscombsci.9b00079
日期:2019.7.8
A new, effective one-pot synthesis of the 6,N2-diaryl-1,3,5-triazine-2,4-diamines under microwave irradiation was developed. The method involved an initial three-component condensation of cyanoguanidine, aromatic aldehydes, and arylamines in the presence of hydrochloric acid. Without isolation, the resulting 1,6-diaryl-1,6-dihydro-1,3,5-triazine-2,4-diamines were treated with a base to initiate Dimroth
开发了一种在微波辐射下有效合成一锅6,N 2-二芳基-1,3,5-三嗪-2,4-二胺的新方法。该方法涉及在盐酸存在下氰基胍,芳族醛和芳基胺的初始三组分缩合。不经分离,将所得的1,6-二芳基-1,6-二氢-1,3,5-三嗪-2,4-二胺用碱处理以引发Dimroth重排和自发脱氢芳构化,得到所需化合物。发现所开发的方法在范围上足够通用,可以耐受各种芳族醛和胺。通过在第一步中使用它们的组合,成功制备了110种化合物的代表性文库,并筛选了其抗癌特性。