参考标题:Nucleophilic Reaction Upon Electron-Deficient Pyridone Derivatives. X.One-Pot Synthesis Of 3-Nitropyridines By Ring Transformation Of 1-Methyl-3,5-Dinitro-2-Pyridone With Ketones Or Aldehydes In The Presence Of Ammonia 作者:Yasuo Tohda,Miyuki Eiraku,Takao Nakagawa,Yumi Usami,Masahiro Ariga,Toshihide Kawashima,Keita Tani,Hiroko Watanabe,Yutaka Mori |发布日期:1990.10 摘要:The Reaction Of 1-Methyl-3,5-Dinitro-2-Pyridone (1A) With Ketones Or Aldehydes In The Presence Of Ammonia Gave Alkyl- And/or Aryl-Substituted 3-Nitropyridines (6) In Moderate To High Yields. Enamines Derived From The Ketones Gave Better Results Than Did The Ketones Themselves; On The Other Hand, Those Derived From The Aldehydes Gave No 6 At All. On The Basis Of Deuterium-Labeled Experiments, A Mechanism Comprising Competitive Ring Transformations Of 1A Is Proposed.
合成参考文献
摘要:Fringuelli, F.; Piermatti, O., Science of Synthesis: Water in Organic Synthesis, (2012) 1, 495.