1-Methyl-3-ethylpyridinium塩の酸化(訂正)

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概要

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• The report made by Sugasawa and Ban that the oily oxidation product, produced in 66% yield, of 1-methyl-3-ethylpyridinium methosulfate consisted of 1-methyl-3-ethyl-2-pyridone only, was in error, which was caused by a cursory examination of the distillation product. The present study revealed that the oily oxidation product was really a mixture of 1-methyl-3-ethyl-2-and-6-pyridone in proportion of approximately 8 : 1. Their separation was made possible through picrates, of which the one from the 2-pyridone is freely soluble in ether, whereas the other is practically insoluble in cold ether. By using the oxidation agent in a certain excess, the yield of the product attained as high as 84% of the theoretical.

• 1956-04-20

著者

• 菅沢 重彦

  Pharmaceutical Institute Medical Faculty University of Tokyo

• 桐沢 誠

  Pharmaceutical Institute, College of Science and Engineering, Nihon University

• 桐沢 誠

  Pharmaceutical Institute Medical Faculty University Of Tokyo

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