Copper complexes bearing methylthiophenyl and methylfuranyl derivatives of (R,R)-1,2-diaminocyclohexane: X-ray structures and catalytic exploitation in Henry reaction

Polyhedron ◽  
2015 ◽  
Vol 99 ◽  
pp. 198-203 ◽  
Author(s):  
Jaewon Cho ◽  
Gang Ho Lee ◽  
Saira Nayab ◽  
Jong Hwa Jeong
Keyword(s):  
Copper Complexes ◽  
Henry Reaction ◽  
X Ray ◽  
Derivatives Of

Synthesis, characterization and biological activities of 1,3,4-oxadiazole derivatives of nalidixic acid and their copper complexes

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Nalidixic Acid ◽  
Copper Complexes ◽  
Biological Activities ◽  
Bidentate Coordination ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Oxadiazole Derivatives ◽  
Antibacterial And Antifungal ◽  
Derivatives Of ◽  
Substituted 1

A series of novel 1, 3, 4-oxadiazole analogues was synthesized from cyclization of hydrazones of substituted 1-ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3-carbohydrazides were prepared from nalidixic acid. The structures of synthesized oxadiazole derivatives and their copper complexes were elucidated on the basis of FTIR, elemental analyses, 1H-NMR and atomic absorption spectral analysis. It was observed from spectral data that metal ligand ratio was 1:1 in all copper complexes and they were bidentate, coordination was found to be done through oxygen of 4-oxo group and nitrogen of oxadiazole ring. The synthesized compounds were further evaluated with biological activities and compared with parent hydrazones. Copper complexes possess antibacterial and antifungal activities better than the oxadiazoles while they have better antioxidant activity then copper complexes. Parent hydrazones were better in all biological activities than synthesized oxadiazoles.

scholarly journals Synthesis of New Derivatives of BEDT-TTF: Installation of Alkyl, Ethynyl, and Metal-Binding Side Chains and Formation of Tris(BEDT-TTF) Systems

2021 ◽  
Vol 7 (8) ◽  
pp. 110
Author(s):  
Songjie Yang ◽  
Matteo Zecchini ◽  
Andrew Brooks ◽  
Sara Krivickas ◽  
Desiree Dalligos ◽  
...  
Keyword(s):  
Metal Binding ◽  
Tricarboxylic Acid ◽  
Metal Salts ◽  
Side Chain ◽  
Side Chains ◽  
Ethynyl Group ◽  
X Ray ◽  
Transition Metal Salts ◽  
Alkyl Side Chains ◽  
Derivatives Of

The syntheses of new BEDT-TTF derivatives are described. These comprise BEDT-TTF with one ethynyl group (HC≡C-), with two (n-heptyl) or four (n-butyl) alkyl side chains, with two trans acetal (-CH(OMe)2) groups, with two trans aminomethyl (-CH2NH2) groups, and with an iminodiacetate (-CH2N(CH2CO2−)2 side chain. Three transition metal salts have been prepared from the latter donor, and their magnetic properties are reported. Three tris-donor systems are reported bearing three BEDT-TTF derivatives with ester links to a core derived from benzene-1,3,5-tricarboxylic acid. The stereochemistry and molecular structure of the donors are discussed. X-ray crystal structures of two BEDT-TTF donors are reported: one with two CH(OMe)2 groups and with one a -CH2N(CH2CO2Me)2 side chain.

Copper-complexes of pyridazine N-oxides; The synthesis and x-ray studies

1978 ◽  
Vol 19 (23) ◽  
pp. 1979-1982 ◽  
Author(s):  
Akio Ohsawa ◽  
Toshio Akimoto ◽  
Akio Tsuji ◽  
Hiroshi Igeta
Keyword(s):  
Copper Complexes ◽  
X Ray

Synthesis, X-ray spectral, and magnetochemical study of copper complexes based on tridentate azomethines of 3-allylsalicylaldehyde

2013 ◽  
Vol 39 (4) ◽  
pp. 347-352 ◽  
Author(s):  
A. S. Burlov ◽  
V. G. Vlasenko ◽  
Ya. V. Zubavichus ◽  
S. I. Levchenkov ◽  
Yu. V. Koshchienko ◽  
...  
Keyword(s):  
Copper Complexes ◽  
X Ray ◽  
Magnetochemical Study

scholarly journals Silver and Copper Complexes with closo-Polyhedral Borane, Carborane and Metallacarborane Anions: Synthesis and X-ray Structure

Crystals ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 60 ◽  
Author(s):  
Varvara Avdeeva ◽  
Elena Malinina ◽  
Igor Sivaev ◽  
Vladimir Bregadze ◽  
Nikolai Kuznetsov
Keyword(s):  
Copper Complexes ◽  
X Ray

The Through-Bond Interaction of a Sulfur Lone Pair with Oxygenated Substituents in the Thiacyclohexane Framework

2005 ◽  
Vol 58 (7) ◽  
pp. 531
Author(s):  
Laura Andrau ◽  
Jonathan M. White
Keyword(s):  
Low Temperature ◽  
Crystal Structures ◽  
Bond Distance ◽  
Lone Pair ◽  
X Ray ◽  
Ester Derivative ◽  
Bond Interaction ◽  
Derivatives Of ◽  
Electron Demand

Low-temperature X-ray crystal structures were determined on a range of derivatives of 4-thiacyclohexanol 5a of varying electron demand with a view to finding evidence for a through-bond interaction between the sulfur lone pair and the oxygenated substituent. In contrast to earlier suggestions, plots of C–OR bond distance versus pKa (ROH) showed that any interaction between the sulfur and the OR group is unlikely to be of a through-bond origin. Furthermore, unimolecular solvolysis rate measurements on the nosylate ester derivative 5g showed that the sulfur actually retards the reaction slightly in comparison with the corresponding sulfur-free analogue 6.

Di-n-butyltin(IV) derivatives of bis(carboxymethyl)benzylamines: synthesis, NMR and X-ray structure characterization andin vitro antitumour properties

2001 ◽  
Vol 15 (7) ◽  
pp. 593-603 ◽  
Author(s):  
Teresa Mancilla ◽  
Lourdes Carrillo ◽  
Luis S. Zamudio Rivera ◽  
Carlos Camacho Camacho ◽  
Dick de Vos ◽  
...  
Keyword(s):  
Structure Characterization ◽  
X Ray ◽  
Derivatives Of
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