Corpus ID: 17791007

An Efficient One-pot Synthesis of Tetrahydro-Chromeno (4,3-b) Chromene-6,8-Dione and Tetrahydro-Pyrano (4,3-b) Chromene-1,9-Dione Derivatives under Solvent-Free Conditions

@inproceedings{AnarakiArdakani2013AnEO,
  title={An Efficient One-pot Synthesis of Tetrahydro-Chromeno (4,3-b) Chromene-6,8-Dione and Tetrahydro-Pyrano (4,3-b) Chromene-1,9-Dione Derivatives under Solvent-Free Conditions},
  author={H. Anaraki‐Ardakani and Rezvan Ghanavatian and M. Akbari},
  year={2013}
}
3 Abstract: Three-component reaction between 4-hydroxycoumarin or 4-hydroxy-6-methylpyran-1-one, aromatic aldehydes and cyclic1,3-diketone catalyzed by p-toluene sulfonic acid in solvent-free conditions provided a simple and efficient one-pot route for the synthesis of tetrahydro-chromeno(4,3-b)chromene-6,8-dione and tetrahydro-pyrano(4,3-b)chromene-1,9-dione derivatives in excellent yields. 
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