Straightforward Access to the Nitric Oxide Donor Azasydnone Scaffold by Cascade Reactions of Amines
作者:Egor S. Zhilin、Dmitry M. Bystrov、Ivan V. Ananyev、Leonid L. Fershtat、Nina N. Makhova
DOI:10.1002/chem.201903526
日期:2019.11.13
construction strategy involves a diazotization/azo coupling/elimination/double rearrangement cascade sequence of readily available amines. The current protocol enables the generation of a diverse array of azasydnones, including previously hardly accessible heteroaryl substituted azasydnones (25 examples, 70-97 % yield) with a good functional group tolerance under very mild conditions. Preliminary NO-releasing
已开发出一种新颖的一锅级联方法,用于组装有价值的NO供体氮杂氮酮骨架。该构建策略涉及容易获得的胺的重氮化/偶氮偶合/消除/双重排级联序列。当前的方案使得能够生成多种阵列的氮杂氨醛酮,包括先前难以接近的杂芳基取代的氮杂氨醛酮(25个实例,产率为70-97%),并且在非常温和的条件下具有良好的官能团耐受性。初步的NO释放研究表明,氮杂syndones能够在很宽的浓度范围内产生NO。该方法为氮-氧杂环化合物的开发提供了一种新方法,在医学和材料科学领域具有潜在的应用前景。