Title:Ionic Liquid: A Review on Multicomponent Synthesis of Dihydropyrano
[3,2-c] Chromenes
Volume: 20
Issue: 10
Author(s): Kalpana M. Tekale, Santosh S. Katkar*Diksha B. Wahul
Affiliation:
- Chemistry Research Centre, MSS’S Arts, Science and Commerce College, Dr. Babasaheb Ambedkar Marathwada University,
Aurangabad, (MS), India
Keywords:
Ionic liquid, dihydropyorno [3, 2-c] chromene, multicomponent reaction, ecofriendly, heterocyclic compounds, heterocyclic compounds.
Abstract: The development of efficient and eco-friendly synthetic processes or techniques for the
synthesis of heterocyclic compounds is increasing enormously. Here, an environmentally friendly ionic
liquid is used as an efficient catalyst for the synthesis of biologically important dihydropyrano [3,2-
c] chromenes. This is because ionic liquids play an important role in green chemistry due to their distinctive
properties, easy handling, non-toxicity, increased reaction selectivity, and low solubility. This
review focuses on dihydropyrano [3,2-c] chromenes synthesis due to their great importance as natural
products, pharmaceuticals, and bioactive molecules. The review summarizes the application of ionic
liquids as an effective catalyst for the multicomponent synthesis of dihydropyrano [3,2-c] chromene
derivatives by using aromatic aldehydes, 4-hydroxycoumarin, and malononitrile in a green chemical
manner.