Schiff bases
A novel approach toward the synthesis of some new tridentate Schiff bases from anil-like compounds
... General procedure for the synthesis of compounds 2a–d, 4a–c, 6 and 7. Formic acid (98 % aqueous solution, 0.1 mmol) was added to a mixture of compounds 1a or 1b or 1c and o-phenylenediamines (1 mmol) or o-aminophenol (1 ...
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Two novel Co(II) complexes with two different Schiff bases: inhibiting growth of human skin cancer cells
... In conclusion, we successfully obtained two new Co(II)-coordination compounds (1 and 2) by employing two different flexible Schiff base ligands. From the bio- logical activity investigation, we observed that the ...
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Evaluation of schiff bases and its metal complexes with potential therapeutic applications
... Transition metal complexes possess several advantages that make them attractive alternatives to small organic molecules for the development of therapeutic agents. They can adopt numerous geometries, including ...
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Copper compounds (Schiff bases) as DNA-Interacting agents
... Schiff bases represent an important class of compounds in medicinal chemistry by themselves ...that Schiff bases coordinated to Cu(II) have antiproliferative and antibacterial activities, due ...
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Experimental and theoretical study of the reduction of Schiff bases derivated from 3,3-diphenylpropilamine.
... OF SCHIFF BASES DERIVATED FROM 3,3- ...seven Schiff bases have been synthesized from 3,3-diphenylpropilamine and substituted ...the Schiff bases in order to compare the ...
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Synthesis and biological evaluation of novel 6Hydroxybenzo[d]oxathiol2one Schiff bases as potential anticancer agents
... The Schiff bases 4a–r were prepared from reactions between 3 (1 mmol) and the appropriate benzaldehyde or heteroaromatic aldehyde (1 mmol) in ethanol (10 ...
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Synthesis, characterization and biological evaluation of zinc(ii) complexes with phenanthroline derivatives and s-methyl dithiocarbazate schiff bases
... Synthesis and characterization of Co(II), Cu(II), Cd(II), Zn(II) and Ni(Ii) complexes of Schiff base ligand derived from S-benzyldithiocarbazate (Sbdtc) and acetophenon[r] ...
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J. Braz. Chem. Soc. vol.20 número2
... absence of metal ions and then in their presence. [M]:[L] ratios were about 1:1 and 1:2. For all the Schiff bases, an excess of HClO 4 solution was added, so that they were fully protonated at the beginning ...
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SÍNTESE E CARACTERIZAÇÃO DE COMPLEXOS DE CÁDMIO(II) COM BASES DE SCHIFF DERIVADAS DE AMINOÁCIDOS Sérgio Macêdo Soares
... and Schiff bases derived from condensation of five amino acids (L-cysteine, L-methionine, L-alanine, L-histidine and β- alanine) with two aldehydes (salicilaldeído and ...Ten Schiff bases are ...
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J. Braz. Chem. Soc. vol.28 número1
... free Schiff bases, the copper(II) complexes and doxorubicin, the reference drug, was evaluated using seven tumor cell lines U251 (melanoma), MCF7 (breast cancer), NCI/ADR-RES (resistant ovarian), 786-0 ...
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J. Braz. Chem. Soc. vol.24 número8
... of Schiff bases and their copper(II) complexes as well as possible mechanisms of antioxidant activity were ...investigated. Schiff bases are derived from the condensation of ethane-1,2-diamine ...
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Preparação, caracterização e estudos termoanalíticos de bases de Schiff biopoliméricas e seus complexos de cobre.
... BIOPOLYMERICS SCHIFF BASES AND ITS COPPER ...biopolymeric Schiff bases obtained of chitosan. The Schiff bases were obtained from the condensation chitosan ( DA = 90%) with ...
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CENTRO DE CIÊNCIAS EXATAS E DE TECNOLOGIA DEPARTAMENTO DE QUÍMICA PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA COMPLEXOS MONO, BI E TRINUCLEARES DE METAIS DE TRANSIÇÃO COM BASES DE SCHIFF TRIDENTADAS TIPO
... MONO, BI E TRINUCLEAR COMPLEXES OF TRANSITION METALS WITH SCHIFF BASES TRIDENTATE TYPE ONN AND TETRADENTATE TYPE ONNO: SYNTHESIS AND CHARACTERIZATION STUDIES AND AS CATALYSTS IN THE OXIDATION OF CATECHOLS. ...
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Thermodynamics of the complexation between salicylaldehyde thiosemicarbazone with Cu2+ ion in methanol +1,4-dioxane binary solutions
... of Schiff bases with metal ions in non- aqueous solvents and mixed solvent systems, thermodynamic data on complex formation of salicyaldehyde thiosemicarbazone (STSC) with Cu(II) ions in pure and mixed ...
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SYNTHESIS OF SULFONAMIDE BASED SCHIFF’S BASES AND THEIR BIOLOGICAL EVALUATION TOWARDS COLLETOTRICHUM GLOEOSPORIOIDES
... Schiff bases are the significant compounds owing to their wide range of biological activities and industrial .... Schiff bases are the compounds containing azomethine group (-HC=N-) formed by ...
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CENTRO DE CIÊNCIAS EXATAS E DE TECNOLOGIA DEPARTAMENTO DE QUÍMICA PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA COMPLEXOS DE COBRE(II) COM BASES DE SCHIFF, TIPO ONNO DERIVADOS DE CIS- E (±)-TRANS-1,2- CICLOHEXANODIAMINA: SÍNTESE, CARACTERIZAÇÃO E
... with Schiff bases, type ONNO derived from the cis and (±)-trans-1,2-cyclohexadiamine: Synthesis and Characterization Studies and as catalysts in the oxidation of ...
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Preparação e caracterização de bases de Schiff e complexos metálicos a partir de...
... Biopolymeric Schiff bases were prepared from chitosan and salicylaldehyde and its 5-bromo, 5-chloro, 5-methyl, 5-methoxy and 5-nitro derivatives, under conditions optimized to improve the degree of ...
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CENTRO DE CIÊNCIAS EXATAS E DE TECNOLOGIA DEPARTAMENTO DE QUÍMICA PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA Complexos mono- e bimetálicos de cobre(II) e de cobalto(III) com bases de Schiff tridentadas e tetradentadas: Sínteses, caracterizações e estudos em
... This dissertation details the synthesis with satisfactory reaction yields (between 56.3 and 96.5%) of mono- and bimetallic complexes of copper(II) and of cobalt(III), containing as ligands, tridentate and tetradentate ...
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Coloração de núcleos de esporos e hifas do cogumelo Agaricus blazei.
... Para as preparações citológicas de micélio, foram utilizadas as metodologias de coloração com Giemsa e com reativo de Schiff (Feulgen) e o fluorocromo DAPI. Hifas reisoladas foram desenvolvidas sobre papel- ...
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UNIVERSIDADE FEDERAL DO CEARÁ CENTRO DE CIÊNCIAS DEPARTAMENTO DE QUÍMICA ORGÂNICA E INORGÂNICA PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA JOÃO GONÇALVES DA CRUZ
... of Schiff-based N- Alkylation reactions using as the source of alkyl groups the 3,7-dimethyl-oct-6-enal unsaturated aldehyde, the major component of citronella essential oil (Cymbopogon winterianus), followed by ...
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