<i>Exo-trig</i> selenocyclization of secondary allylic carboxamides using Woollins’ reagent: <i>en route</i> to 2,5-disubstituted selenazolines
作者:Priyanka N. Makhal、Srinivas Reddy Dannarm、Arbaz Sujat Shaikh、Rezwan Ahmed、Shrilekha Chilvery、Lahu N. Dayare、Rajesh Sonti、Chandraiah Godugu、Venkata Rao Kaki
DOI:10.1039/d2cc06782j
日期:——
We report microwave-assisted selenation and exo-trig cyclization of secondary allylic carboxamides using Woollins’ reagent, a serendipitous finding observed during an attempt to synthesize N-allylbenzoselenoamide compounds. This resulted in the first reported synthesis of 2-aryl-5-methyl selenazolines. Twenty-one diversified selenazolines and three late-stage-functionalized drug molecules were synthesized
我们使用 Woollins 试剂报告了二级烯丙基甲酰胺的微波辅助硒化和外触发环化,这是在尝试合成N -烯丙基苯并硒酰胺化合物时观察到的偶然发现。这导致了首次报道的 2-aryl-5-methyl selenazolines 的合成。合成了 21 种多样化的硒唑啉和三种后期功能化药物分子,产率分别为 42-93% 和 25-52%,并进一步评估了它们的抗增殖活性。