Practical Electrochemical Anodic Oxidation of Polycyclic Lactams for Late Stage Functionalization
作者:Kevin J. Frankowski、Ruzhang Liu、Gregory L. Milligan、Kevin D. Moeller、Jeffrey Aubé
DOI:10.1002/anie.201504775
日期:2015.9.1
functionalization of complex lactams. A two‐stage protocol for converting lactams, many of which can be prepared through the intramolecular Schmidt reaction of keto azides, is presented. In the first step, anodic oxidation in MeOH using a repurposed power source provides a convenient route to lactams bearing a methoxy group adjacent to nitrogen. Treatment of these intermediates with a Lewis acid in dichloromethane
电化学为复杂内酰胺的后期功能化提供了强大的工具。提出了一种用于转化内酰胺的两阶段方案,其中许多内酰胺可以通过酮叠氮化物的分子内施密特反应来制备。第一步,使用重新调整用途的电源在甲醇中进行阳极氧化,为生成带有与氮相邻的甲氧基的内酰胺提供了便捷的途径。在二氯甲烷中用路易斯酸处理这些中间体可以再生活性酰亚胺离子,然后该离子与一系列亲核物质反应。