A New One-Pot, Three-Component
Synthesis of 2,3,5-Substituted or Annulated-6-(Methylthio)pyridines
作者:H. Ila、A. Yadav、S. Yadav、I. Siddiqui、S. Peruncheralathan、H. Junjappa
DOI:10.1055/s-0028-1083529
日期:——
A new one-pot, three-component synthesis of 2,3,5-substituted (or 2,3 -annulated)-6-(methylthio)pyridines by reacting acyclic or cyclic active methylene ketones, ammonium acetate, and bis(methylthio)acrolein (1) or its 2-phenyl analogue 8 (as 3-carbon-1,3-biselectrophilic components) in the presence of either AcOH-TFA (4:1) or ZnBr 2 (or Znl 2 ) catalysts has been reported.
通过无环或环状活性亚甲基酮、乙酸铵和双(甲硫基)反应合成 2,3,5-取代(或 2,3-环化)-6-(甲硫基)吡啶的新型单锅三组分合成已经报道了在 AcOH-TFA (4:1) 或 ZnBr 2 (或 Znl 2 ) 催化剂存在下的丙烯醛 (1) 或其 2-苯基类似物 8(作为 3-碳-1,3-双亲电组分)。