Abstract
Methyl triflate is an efficient agent for the quaternization of nitropyridines containing an additional electron-withdrawing substituent. When triethyloxonium hexachloroantimonate is used as the quaternizing agent, b -elimination occurs with formation of protic pyridinium salt and ethylene. Authors: O. D. Mit'kin and M. A. Yurovskaya. English Translation in Chemistry of Heterocyclic Compounds , 2000, 36 (1), pp 47-48 http://link.springer.com/article/10.1007/BF02256843
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