Synthesis of 3,4-dihydropyrimidin-2(1H)-ones using Ziegler-Natta catalyst system under solvent free conditions

  • Kumar A
  • Maurya R
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Abstract

A Ziegler-Natta catalyst system (TiCl4-MgCl2/magnesium chloride-methanol adduct) was efficiently found to catalyze the three component Biginelli reaction of an aldehyde, β-keto ester, and urea or thiourea under solvent free conditions to afford the corresponding 3,4-dihydropyrimidin-2-(1H)-ones in excellent yields. The enhanced surface areas of TiCl4-MgCl2-methanol adduct plays significant role in providing an efficient synthesis of Biginelli compounds. © 2007 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Biginelli reaction
  • Dihydropyrimidinones
  • Multi-component reaction
  • Solvent free
  • Ziegler-Natta catalyst

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