چكيده فارسي :
Xanthenes are important class of heterocycles that are known to possess multiple biological activities. Although not widely found in nature, xanthenes exhibit a wide range of pharmaceutical activities such as anti-bacterial, anti-inflammatory, and anti-viral. Some xanthene based compounds have found application as antagonists for inhibiting the action of zoxazolamine and in photodynamic therapy. In addition, their derivatives can be used as dyes, pH sensitive fluorescent materials for the visualization of biomolecular assemblies and in laser technologies[1,2].
So, we would like to report synthesis of different xanthenedione derivatives by reaction of dimedone with different aromatic aldehydes at 85 °C under solvent free condition (figure 1).