Alumina-Supported Cobalt Nanoparticles Efficiently Catalyzed the Synthesis of Chromene Derivatives under Solvent-Free Condition
Journal: Chemical Methodologies (Vol.4, No. 5)Publication Date: 2020-09-01
Authors : Jalal Albadi; Heshmat Allah Samimi; Ahmad Reza Momeni;
Page : 565-571
Keywords : Co/Al2O3 nanocatalyst; nanocatalyst; Resorcinol; 2-hydroxy naphthalene; Chromenes; Solvent-free condition;
Abstract
In this research study, an efficient approach is reported for the solvent-free synthesis of various chromene derivatives catalyzed by alumina-supported cobalt nanoparticles in high yields. Alumina-supported cobalt nanoparticles (Co/Al2O3 nanocatalyst), efficiently catalyzed the reaction between the resorcinol or 2-hydroxy naphthalene with benzaldehyde and malononitrile into chromene derivatives in high efficiency. This procedure allowed us to obtain corresponding products in short reaction times, simple work-up, and high yields. Experimental procedure with Co/Al2O3 nanocatalyst is very simple and the catalyst is easily removed by filtration. The catalyst was also found to be recyclable and can catalyze synthesis of the chromenes up to 5 times well.
Other Latest Articles
- Cyclodehydration and Baker-Venkataraman Rearrangement Methodologies for the Preparation of Fluorinated 4H-Chromones
- Fe3O4 Bonded Pyridinium-3-carboxylic acid-N-sulfonic Acid Chloride as an Efficient Catalyst for the Synthesis of 3,4-dihydropyrimidin-2(1H)-ones
- SUSTAINABLE REGENERATION OF MORDENITE MINERAL AS ION EXCHANGER FOR REMOVAL IRON AND MANGANESE IN GROUNDWATER
- FACTORS CONTRIBUTING TO DEMOCRATIC CULTURE ALERTNESS: A CASE STUDY OF SUAN SUNANDHA RAJABHAT UNIVERSITY (BACHELOR DEGREE STUDENTS)
- ENSURING THE QUALITY OF HIGHER EDUCATION IN CONTEXT OF THEORY OF INSTITUTIONALISM
Last modified: 2020-07-07 21:31:48