Brønsted Acid Catalyzed Monoalkylation of Anilines with Trichloroacetimidates
作者:Daniel R. Wallach、Patrick C. Stege、Jigisha P. Shah、John D. Chisholm
DOI:10.1021/jo5027222
日期:2015.2.6
under these conditions. Electron-poor anilines provide superior yields, with electron-rich anilines sometimes showing competitive Friedel–Craftsalkylation. A single flask protocol with formation of the imidate in situ is demonstrated, providing a convenient method for the direct substitution of alcohols with anilines. Reaction with a chiral imidate favors a mechanism that proceeds through a carbocation