Syntheses and Crystal Structures of Diethylated Daidzein Sulfonates

Crystal structure of 3′-nitro-4′,7-dihydroxyisoflavone, C15H9NO6

“…Thus, it is necessary to synthesize awatersolublederivative of daidzein in order to study its possible biologicaleffects. Wealready hadsynthesized the derivatives of daidzein, and studied their structures and biologicalactivities [9,10]. Ino rder to prepare 3 ¢ -amino-4¢ ,7-dihydroxyisoflavone,i ts intermediate 3 ¢ -nitro-4¢ ,7-dihydroxyisoflavone was synthesized and the crystalstructure wasdetermined.…”

Metal–organic coordination polymers based on Cs(I), Rb(I) and isoflavone-3′-sulfonate ligands

“…The results showed that isoflavonesulfonates displayed the better activities than their parent compounds [22,23]. At the same time, crystal structures of many flavonesulfonates and isoflavonesulfonate complexes were reported [29][30][31][32][33][34]. They had rich structural features, and some of them even displayed photoluminescence properties.…”

Self-assembly and crystal structure of a barium sulfonate chrysin coordination polymer

“…a p 11 10 conjugation system and p-p stacking exists between two adjacent benzopyranone moieties with the distance of C g AC and C g AC# being 3.648 Å , where C g AC and C g AC# are the center of benzopyranone ring (O1/C1-C9) at (x, y, z) and benzopyranone ring (O1/C1-C9) at (1.0 À x, y, 1.5 À z), respectively. The distance is in the range of p-p stacking interactions (3.30-3.80 Å ) [19]. It indicates that p-p stacking interaction exists in the polymer.…”