Gold(I)-Catalyzed Formation of 3-Pyrazolines through Cycloaddition of Diaziridine to Alkynes
作者:David A. Capretto、Chad Brouwer、Catherine B. Poor、Chuan He
DOI:10.1021/ol202452b
日期:2011.11.4
work reports the high-yield formation of pyrazoline derivatives mediated by gold(I) catalysts. The reaction utilizes a diaziridine, which has seen only limited usage in organic methodology. Mechanistic studies suggest a gold-mediated opening of the diazridine ring, alkyne insertion, and finally an intramolecular hydroamination to furnish the product.
这项工作报告了由金(I)催化剂介导的吡唑啉衍生物的高产率形成。该反应利用了重氮丙啶,在有机方法学中只发现了有限的用途。机理研究表明,金介导的二氮杂环丁烷环的打开,炔烃的插入以及最后的分子内加氢胺化作用提供了这种产物。