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NMR studies of base-catalyzed proton exchange in amidesPerrin, Charles L.; Johnston, Eric R.; Lollo, Charles Peter; Kobrin, Paul A. · Journal of the American Chemical Society · 1981
Mechanism of acid-catalyzed proton exchange in amidinium ionsPerrin, Charles L.; Johnston, Eric R.; Ramirez, Jose L. · Journal of the American Chemical Society · 1980