Synthesis, spectroscopic characterization and X-ray structures of five-coordinate diorganotin(IV) complexes containing 5-hydroxypyrazoline derivatives as ligands

Diorganotin(IV) complexes with 2-furancarboxylic acid hydrazone derivative of benzoylacetone: Synthesis, X-ray structure, antibacterial activity, DNA cleavage and molecular docking

“…Recently these compounds have been used in new contexts as in cancer chemotherapy [22,23]. In view of a few reports on organotin(IV) complexes of hydrazones derived from 1,3-diketones [24][25][26][27][28], it was considered worthwhile to investigate the synthesis, structural aspects and biological properties of hydrazonic derivatives of 1,3-diketones and their organotin complexes. In the present paper, 2-furancarboxylic acid hydrazone derivative of benzoyl acetone and its dimethyl-and diphenyltin complexes have been synthesized.…”

Novel pyrazoline and pyrazole “turn on” fluorescent sensors selective for Zn2+/Cd2+ at λem 480 nm and Fe3+/Fe2+ at λem 465 nm in MeCN

“…1 ). Pyrazolines chelators for gold, 20 tin 21 and ruthenium 22 have all been reported with the groups of Miao and Zhao pioneering both “turn on” and “turn off” pyrazoline fluorescent sensors for multiple systems including Zn 2+ in aqueous environments and living systems. 23 A variety of photophysical processes result in increased fluorescence emission 18,19 with the blocking of the photoinduced electron transfer (PET) process upon Zn 2+ chelation a common pathway.…”

One-pot activation–alkynylation–cyclization synthesis of 1,5-diacyl-5-hydroxypyrazolines in a consecutive three-component fashion

“…In addition, 1-acyl-5-hydroxypyrazolines are bidentate ligands for zinc complexes and by virtue of being ring tautomers of β-enolhydrazones they can also act as tridentate ligands for nickel [28] and tin [29–30] complexes. In contrast, dimethylzinc forms dimeric complexes where the 1-acyl-5-hydroxypyrazoline acts as a bidentate ligand [31].…”