Herein, we report a user friendly, scalable and safe procedure to convert aminoheterocycles to their hydroxylated analogues with a pyrylium tetrafluoroborate salt in combination with a hydroxamic acid. The protocol is characterized by a broad functional group tolerance, permitting the selective modification of biorelevant molecules. Mechanistic experiments allowed the identification of key intermediates
在此,我们报告了一种用户友好、可扩展且安全的程序,使用四
氟硼酸吡啶盐和异羟
肟酸将
氨基
杂环化合物转化为其羟基化类似物。该协议的特点是具有广泛的官能团耐受性,允许对
生物相关分子进行选择性修饰。机械实验允许识别整个转化过程中涉及的关键中间体。