An efficient synthesis of some new curcumin based pyrano[2,3-d]pyrimidine-2,4(3H)-dione derivatives using CoFe2O4@OCMC@Cu(BDC) as a novel and recoverable catalyst

Insights into the recent progress in the medicinal chemistry of pyranopyrimidine analogs

“…the nitro substituents at the phenyl ring improved the AR inhibitory activity. 91 Ghaffarian et al 92 93 reported also the synthesis of these series of pyranopyrimidines incorporated curcumin moiety 127 using catalytic SAA-MNPs (8 mol%). In 2021, Mehrabi et al 13 and Esmaeili et al 94 synthesized these series of compounds 128 and 129 with different substituents by multicomponent one-pot synthesis using borax with 10% in ethanol at reflux temperature.…”

“…Ghaffarian et al 92 developed the multicomponent synthesis of pyranopyrimidines bearing curcumin fragments (Scheme 30) (10 examples: “Ar = 4-Cl-Ph, 4-NO 2 -Ph, 3-NO 2 -Ph, 4-Br-Ph, 2,4-Cl 2 -Ph, 4-CN-Ph, 3-OH-Ph, 4-SMe-Ph, Ph, 3-NH-C 8 H 6 ”) using CoFe 2 O 4 @OCMC@Cu (BDC) recyclable nanocatalyst with improved yields (81–94%) without additional biological applications. In 2015, Yousefi et al 37 reported the multicomponent synthesis of pyranopyrimidines-based curcumin fragment “series 126 ” “ 4 examples ” using p -toluene sulfonic acid in refluxing ethanol.…”

Fast and Efficient Removal of Uranium onto a Magnetic Hydroxyapatite Composite: Mechanism and Process Evaluation

“…CoFe 2 O 4 , a compound with excellent magnetic and unique properties, has been widely used in applications, such as permanent magnets, storage devices, magnetic recording, electronics, and pigments [28][29][30][31]. Compared with Fe 3 O 4 , CoFe 2 O 4 has more advantages, such as simpler synthesis, more hydroxyl groups on the surface, and excellent chemical inertness [32][33][34][35].…”

A nickel nanoparticle engineered CoFe2O4@GO–Kryptofix 22 composite: a green and retrievable catalytic system for the synthesis of 1,4-benzodiazepines in water

“…CoFe 2 O 4 nanoparticles decorated on graphene oxide to obtain CoFe 2 O 4 @GO composite, will achieve further stabilization of these nanoparticles, and also prevents formation of aggregates in solution. [16][17][18][19] On the other hand, Kryptox 22 (K 22) as a specic class of aza-crown ether have been known for their high affinity and selectivity to bind transition metals (Fig. 1).…”