10.1016/j.molstruc.2019.127635
The research aimed to synthesize and evaluate a series of octahedral homoleptic tin(IV) compounds derived from tridentate ONS dithiocarbazate Schiff bases for their potential cytotoxic effects against various cancer cell lines. The key chemicals used in the synthesis included tin(II) chloride, dithiocarbazate Schiff bases derived from 2-hydroxy-3-methoxybenzaldehyde and 2,3-dihydroxybenzaldehyde, and various substituted benzyl groups. The compounds were characterized using elemental analysis, FT-IR, multinuclear NMR (1H, 13C, and 119Sn), and X-ray crystallography. Density functional theory (DFT) calculations were employed to validate the experimental findings. The study concluded that five of the synthesized tin(IV) compounds exhibited higher cytotoxicity against HT29, MCF7, and MIA cancer cell lines compared to the reference drug cisplatin, suggesting their potential as chemotherapeutic agents. The research highlights the significance of ligand modification in enhancing the bioactivity of metal-based compounds for cancer therapy.
10.3906/kim-1005-607
The research investigates the asymmetric ring-opening of epichlorohydrin by salicylaldehyde derivatives using Co(III) salen catalysts. The study found that the ring-opening occurred at the phenolic groups most distant from the aldehydic group. Notably, switching catalysts led to a reversal in enantioselectivity. The addition of AlCl3 to the reaction mixture significantly accelerated the reaction rate without compromising product enantiopurity. Key chemicals involved in the research include epichlorohydrin, 2,3-dihydroxybenzaldehyde, 2,4-dihydroxybenzaldehyde, salicylaldehyde, Co(III) salen catalysts (1a and 1b), and AlCl3. The study also involved the synthesis of oximes and benzisoxazoles as part of the product characterization process.