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

作者：Hazeri Nourallah^*; Maghsoodlou Malek Taher; Mir Fatemeh; Kangani Mehrnoosh; Saravani Hamideh; Molashahi Ebrahim

来源：Chinese Journal of Catalysis, 2014, 35(3): 391-395.

DOI：10.1016/S1872-2067(14)60003-6

• Tetrahydrobenzo[b]pyran
• Dihydropyrano[c]chromene
• Starch solution

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.

• 出版日期2014-3