The preparation and characterization of some N-chloro-2-and N-chloro-4-pyridones

AR Katritzky, GR Khan, DE Leahy…

Index: Katritzky, Alan R.; Khan, Ghulam R.; Leahy, David E.; Rosa, Michael De Journal of Organic Chemistry, 1984 , vol. 49, # 25 p. 4784 - 4786

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Citation Number: 13

Abstract

2-Pyridone and 5-chloro-2-pyridone with NaOCl yield 1-chloro-2-pyridone and 1, 5-dichloro- 2-pyridone, respectively, which rapidly rearrange into 5-chloro-and 3, 5-dichloro-2-ppidone. 3, 5-Dichloro-2-pyridone with NaOCl yields 1, 3, 5-trichloro-2-ppidone which shows considerable stability. 4-Ppidone is similarly converted by NaOCl into 3, 5-dichloro-4- pyridone via an unstable N-chloro derivative. 1, 3, 5-Trichloro-4-pyridone was obtained ...