5 documents found, page 1 of 1
Antimicrobial and antitumor activity of S-methyl dithiocarbazate Schiff base zi...
Gomes, Filipa Ramilo; Addis, Yemataw; Tekamo, Israel; Cavaco, Isabel; Campos, Débora L.; Pavan, Fernando R.; Gomes, Clara S.B.; Brito, VanessaSchiff bases (SB) obtained from S-methyl dithiocarbazate and aromatic aldehydes: salicylaldehyde (H2L1), o-vanillin (H2L2), pyridoxal (H2L3) and 2,6-diformyl-4-methylphenol (H3L4), and their corresponding Zn(II)-complexes (1-4), are synthesized. All compounds are characterized by elemental analyses, infrared, UV-Vis, nuclear magnetic resonance spectroscopy and mass spectrometry. The structures of H2L2 and [Zn2(...
Antimicrobial and antitumor activity of S-methyl dithiocarbazate Schiff base zi...
Ramilo-Gomes, Filipa; Addis, Yemataw; Tekamo, Israel; Cavaco, Isabel; Campos, Débora L. [UNESP]; Pavan, Fernando R. [UNESP]; Gomes, Clara S.B.Made available in DSpace on 2021-06-25T11:09:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-01; Schiff bases (SB) obtained from S-methyl dithiocarbazate and aromatic aldehydes: salicylaldehyde (H2L1), o-vanillin (H2L2), pyridoxal (H2L3) and 2,6-diformyl-4-methylphenol (H3L4), and their corresponding Zn(II)-complexes (1–4), are synthesized. All compounds are characterized by elemental analyses, inf...
Antimicrobial and antitumor activity of S-methyl dithiocarbazate Schiff base zi...
Ramilo-Gomes, Filipa; Alemu, Yemataw; Tekamo, Israel; Cavaco, Isabel; Campos, Débora L.; Pavan, Fernando R.; Gomes, Clara S.B.; Brito, VanessaSchiff bases (SB) obtained from S-methyl dithiocarbazate and aromatic aldehydes: salicylaldehyde (H2L1), o-vanillin (H2L2), pyridoxal (H2L3) and 2,6-diformyl-4-methylphenol (H3L4), and their corresponding Zn(II)-complexes (1-4), are synthesized. All compounds are characterized by elemental analyses, infrared, UV-Vis, nuclear magnetic resonance spectroscopy and mass spectrometry. The structures of H2L2 and [Zn2(...
L-Phenylalanine derived tripodal vanadium complexes as catalysts for the asymme...
Teixeira, Carlos M.; Adão, Pedro; Carvalho, M. Fernanda N.N.; Gomes, Clara S.B.; Pessoa, João CostaTwo tripodal vanadium complexes derived from modified L-phenylalanine were prepared and characterised. Both compounds were tested for their catalytic activity in the reductive coupling of benzaldehyde. Overall, the complexes are capable of catalysing the reductive coupling of benzaldehyde in the presence of metallic zinc as co-reductant and alkylammonium or alkylpyridinium acetate salts in ethanol under mild ae...
Cu(II) complexes derived from N-carboxymethyl and N-carboxyethyl amino acids as...
Adão, Pedro; Teixeira, Carlos M.; Carvalho, M. Fernanda N.N.; Kuznetsov, Maxim L.; Gomes, Clara S.B.; Pessoa, João CostaThe synthesis, characterization and catalytic performance of chiral Cu(II) complexes derived from N-carboxymethylated and N-carboxyethylated amino acids is reported. The ligand precursors are prepared by single step N-alkylation of the sodium salts of the appropriate chiral amino acid with either sodium chloroacetate or sodium 3-chloropropionate in water. The Cu(II) complexes are obtained upon reaction of Cu(CH...