Silica-bonded n-propyltriethylene-tetramine as a recyclable solid base catalyst for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes

Authors

  • Ameneh Malekzadeh Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.
  • Fatemeh Abiar Dil Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.
  • Khodabakhsh Niknam Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran.
  • Marzieh Makvandi Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.
  • Mojtaba Baghernejad Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.
Abstract:

Silica-bonded n-propyltriethylene-tetramine (SBNPTT) was found as an efficient solid base for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. Chromene derivatives were obtained via the three-component condensation reaction of aromatic aldehydes, malononitrile, and dimedone at 80 oC under solvent-free conditions. The heterogeneous solid base showed much the same efficiency when used in consecutive reaction runs.

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Journal title

volume 3  issue 4

pages  221- 228

publication date 2013-12-01

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