A new route to substituted 3-methoxycarbonyldihydropyrans; enantioselective synthesis of (–)-methyl elenolate

Ultrasound assisted synthesis of tetrahydrobenzo[c]xanthene-11-ones using CAN as catalyst

“…Xanthene skeleton is present in a number of natural products [1], and these motifs are found to bear diverse biological applications such as bactericidal [2], anti-inflammatory [3], antiviral [4] activities. They act as antagonists for paralyzing the action of zoxazolamine, [5] and are useful in the photodynamic therapy [6].…”

Synthesis and characterization of novel aliphatic–aromatic polyamide/Fe3O4 nanocomposites containing pendent 9H-xanthene groups

“…Xanthenes are frequently occurring motifs in a number of natural products [27] and are known for their utility as leuco dyes, [28] pH-sensitive fluorescent materials for the visualization of biomolecules [29], and in laser technologies [30] due to their useful spectroscopic properties. Xanthene derivatives have also been used for synthesis of aromatic polyamides, [31] which are characterized as high thermally stable polymers with a favorable balance of physical and chemical properties.…”

Investigation of efficient synthesis of 1, 8-dioxo-octahydroxanthene derivatives under solvent-free grinding method

“…strong and selective inhibition of MAO-A, antitumor activity. 10,11 For 1,8-dioxooctahydroxanthene derivatives, the inherent reactivity of pyran ring 12 makes them building block of several natural products. In literature, a number of synthetic approaches 13,14 have been developed for the preparation of 1,8-dioxo-octahydroxanthenes involving acid or base catalyzed condensation of aldehydes and 5, 5-dimethyl-1,3-cyclohexanedione (Scheme 1) in solvent-free condition, ionic liquid and aqueous medium.…”