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Page: 193
 
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  • Title
  • Certificate
  • Declaration
  • Acknowledgement
  • Contents
  • 1. Introduction
  • 2. Vilsmeier-Haack reactions in synthesis of Heterocycles: An overview
  • 3. A facile method for the synthesis of 2,3,5-Trisubstituted Furans from α-Formylketene Dithioacetals
  • 4. Facile methods for the synthesis of Pyrazoles from α -Formylketene Dithioacetals
  • 5. Aryl-[3-(alkylsulfanyl)-1-phenyl-1H-pyrazol-4-yl] methanones: Valuable precursors for the synthesis of Pyrazolopyridones, Pyrazolopyrimidinones and Aminopyrazoles
  • 6. Reactions of α-Formylketene Dithioacetals with Ethyl bromozincioacetate: A facile method for the synthesis of Thiopyranones