The stability of the carbocations is dependent on the degree of delocalization of the positive charge over the A-ring. From simple chemical concepts it may be predicted that such delocalization will be most effective for C-4 carbocations (see structure (21) in Scheme 2) derived from flavan-...
Fig. 2. Summarized scheme of cyanidins color- chemical structure relationship. Cyanidin or cyanidol (3,5,7,3′,4′- pentahydroxyflavylium) (Fig. 3) is a relatively unstable molecule and it is present rarely in free form in plant tissues. Its glycosylation gives it better stability and ...
The seed coat of mature black soybean, Glycine max, accumulates a high amount of cyanidin 3-O-glucoside (Cy3G), which is the most abundant anthocyanin in nature. In the pod, it takes two months for the seed coat color change from green to black. However,
Further analysis revealed that the BHB motifs in pre-tRNAs are processed in an order that correlates with the theoretical free energy and the position of each motif in the cloverleaf structure. It also indicated that the C. merolae tRNA-splicing endonuclease may show a non-canonical subunit ...
The medium used in the current study were composed of 10% fetal bovine serum (FBS; Life Technologies/Gibco, Grand Island, NY, USA), 100 mg/mL streptomycin, The effects of C3G on the cellular viability of breast cancer cells Firstly, the chemical structure of C3G was listed in Fig....
This review is devoted to an analysis of currently known heterometallic molecular magnets based on an orbitally degenerate 5d metalloligand, [ReIV(CN)7]3−. Heptacyanidometallates with a pentagonal bipyramidal structure of the coordination site and degenerate ground spin state are the source of ...