Processes for preparing N-ethyl-2-methylpyridinium bromide and N-ethyl-3-methylpyridinium bromide
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United States of America Patent
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Sep 27, 2016
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Sep 18, 2014
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Mar 20, 2014
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Sep 22, 2011
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Abstract
A process for preparing an aqueous solution of N-ethyl-2-methylpyridinium bromide (2-MEPy), comprising reacting 2-picoline and ethyl bromide in a pressure reactor at a temperature above the melting point of the reaction mixture, combining the reaction product with water, wherein said reaction product consists essentially of 2-MEPy in a liquid form, and recovering an aqueous solution of 2-MEPy.
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