Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (3): 391-395.DOI: 10.1016/S1872-2067(14)60003-6

• Articles • Previous Articles     Next Articles

An efficient one-pot three-component synthesis of tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives using starch solution as catalyst

Nourallah Hazeri, Malek Taher Maghsoodlou, Fatemeh Mir, Mehrnoosh Kangani, Hamideh Saravani, Ebrahim Molashahi   

  1. Department of Chemistry, The University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, Iran
  • Received:2013-10-10 Revised:2013-12-11 Online:2014-02-26 Published:2014-02-26
  • Contact: Nourallah Hazeri

Abstract:

Tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives were synthesized via a one-pot three-component condensation of aromatic aldehydes with malononitrile and dimedone or 4-hydroxycoumarin in excellent yields in the presence of starch solution as a highly efficient homogenous catalyst. The use of a nontoxic and biodegradable catalyst, simple work-up procedure, and short reaction time are advantages of this method.

Key words: Tetrahydrobenzo[b]pyran, Dihydropyrano[c]chromene, Starch solution