17839-66-6Relevant articles and documents
DNA binding, antibacterial and antifungal activities of copper(II) complexes with some S-alkenyl derivatives of thiosalicylic acid
Tomovi?, Du?an Lj.,Bukonji?, Andriana M.,Jevti?, Verica V.,Ratkovi?, Zoran R.,Bogojeski, Jovana V.,?ekovi?, Ana,Radojevi?, Ivana D.,?omi?, Ljiljana R.,Novakovi?, Sla?ana B.,Bogdanovi?, Goran A.,Trifunovi?, Sre?ko R.,Radi?, Gordana P.,Cupara, Sne?ana
, p. 137 - 148 (2018)
The biological activities of two binuclear copper(II) complexes containing S-alkenyl derivatives of thiosalicylic acid are reported [alkenyl?=?propenyl (L1), isobutenyl (L2)]. The structure of the complex with the S-isobutenyl derivative (C2) was confirmed by single-crystal X-ray structure analysis, which revealed that the structure consists of centrosymmetric, dinuclear complex molecules [Cu2(S-i-butenyl-thiosal)4(DMSO)2] containing two Cu(II) centers bridged by four S-isobutyl-thiosalicylate ligands in a paddle-wheel type structure. The Cu(II) atom is situated in a distorted square-pyramidal environment formed by carboxylate oxygen atoms in the basal plane and a DMSO ligand in the axial position. The reactivities of the complexes toward guanosine-5′-monophosphate (5′-GMP) were investigated. Complex C2 ([Cu2(S-i-butenyl-thiosal)4(H2O)2]) reacted more rapidly with 5′-GMP than complex C1. The interactions of complexes C1 and C2 with calf thymus DNA (CT-DNA) were examined by absorption (UV–Vis) and emission spectral studies (ethidium bromide displacement studies), revealing good DNA interaction abilities. The antimicrobial activities of the free ligands and their complexes were tested by microdilution method, and both minimal inhibitory and microbicidal concentrations were determined. All the tested substances demonstrated selective and moderate antibacterial activity on gram-positive bacteria, but low antibacterial activity on gram-negative bacteria. Also, the tested substances demonstrated low antifungal activity.
Cationic palladium(II)-catalyzed dehydrative nucleophilic substitutions of benzhydryl alcohols with electron-deficient benzenethiols in water
Hikawa, Hidemasa,Machino, Yumo,Toyomoto, Mariko,Kikkawa, Shoko,Azumaya, Isao
, p. 7038 - 7045 (2016/07/30)
An efficient direct nucleophilic substitution of benzhydryl alcohols with electron-deficient benzenethiols using cationic Pd(ii) catalysts as Lewis acids in water is reported. Atom economical and environmentally benign protocols afford S-benzylated produc
Oxidative cyclization of alkenoic acids promoted by AgOAc
Carrillo-Arcos, Ulises A.,Rojas-Ocampo, Jonathan,Porcel, Susana
supporting information, p. 479 - 483 (2016/01/09)
Alkenoic acids derived from salicylic acid and analogues undergo an unexpected oxidative cyclization process triggered by AgOAc leading to 4H-benzo[d][1,3]dioxin-4-ones. The process is affected by the substitution on the aryl and the allyl units.