An Efficient and Rapid Access to the Synthesis of Tetrahydrochromeno[4,3-b]chromene-6,8-dione Derivatives by Magnesium Perchlorate
Arapid and green procedure has been introduced for the preparation of tetrahydrochromeno[4,3-b]chromene-6,8-dione derivatives in the presence of magnesium perchlorate. This solvent-free procedure offers some advantages such as short reaction times, high yields, an easy-to-handle catalyst, and avoidance of organic solvents. In this work four new compounds are reported.
KEYWORDS: Tetrahydrochromeno[4,3-b]chromene-6,8-dione, solvent-free, magnesium perchlorate, three-component reactions.
Copyright for articles published in this journal is retained by the journal.
SAJChem applies the Creative Commons Attribution (CC BY) license to manuscripts we publish. This license was developed to facilitate open access – namely, free immediate access to, and unrestricted reuse of, original works of all types. Under this license, authors agree to make articles legally available for reuse, without permission or fees, for virtually any purpose. Anyone may copy, distribute or reuse these articles, as long as the author and original source are properly cited.