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 convenientroute to lactams bearing a methoxy group adjacent to nitrogen. Treatment of these intermediates with a Lewis acid in dichloromethane
In Situ Generation and Intramolecular Schmidt Reaction of Keto Azides in a Microwave-Assisted Flow Format
作者:Thomas O. Painter、Paul D. Thornton、Mario Orestano、Conrad Santini、Michael G. Organ、Jeffrey Aubé
DOI:10.1002/chem.201100768
日期:2011.8.22
Go with the flow! A method for conversion of keto halides to lactams by means of sequential azidation and intramolecularSchmidtreaction in a combined flowformat is described (see scheme; MWI=microwave irradiation, TFA=trifluoroacetic acid).