Ortho-, meta-, and para-pyridyl oximinoacetoacetates and silver(I)-oximinoacetoacetate networks: Synthesis and X-ray crystallographic analyses

Altaf, Muhammad; Wang, Yi; Socorro, Ingrid M.; Stœckli-Evans, Helen

doi:10.1016/j.ica.2011.11.010

Cited by 6 publications

(7 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[241][242][243][244] In oximes, the electron density in the NÀ OH bond is shifted towards the electronegative oxygen atom. [241][242][243][244] In oximes, the electron density in the NÀ OH bond is shifted towards the electronegative oxygen atom.…”

Section: Synthesis Of Oximesmentioning

confidence: 99%

“…[240] Scheme32. [68,243,244,247] For instance,the reactionof2-substitutedq uinolone with sodium nitrite in the presence of ah eterogenous catalyst (silica-sulfuric acid) in dichloromethane at 0 8Cy ields an E/Z isomeric mixture of a-oximinoketone quinolines, the E isomer being the major product (Scheme38). [61][62][63][229][230][231][232][233] Chem.E ur.J.…”

Section: Synthesis Of Oximesmentioning

confidence: 99%

“…Compounds having a ketoxime or aldoxime (R 1 =H) moiety in a RAHB system are important intermediates in organic synthesis and good chelating agents in coordination chemistry (Scheme ) . In oximes, the electron density in the N−OH bond is shifted towards the electronegative oxygen atom.…”

Section: Rahb As a Driving Force In Synthesismentioning

confidence: 99%

“…The barrier to E / Z isomerization in oxime stereoisomers is high and the two stereoisomers can often be separated and isolated as stereoisomerically pure species . In many cases, the E stereoisomer is normally the predominant species, stabilized by intra‐ or intermolecular H‐bonds . For instance, the reaction of 2‐substituted quinolone with sodium nitrite in the presence of a heterogenous catalyst (silica–sulfuric acid) in dichloromethane at 0 °C yields an E / Z isomeric mixture of α‐oximinoketone quinolines, the E isomer being the major product (Scheme )…”

Section: Rahb As a Driving Force In Synthesismentioning

confidence: 99%

See 3 more Smart Citations

Resonance‐Assisted Hydrogen Bonding as a Driving Force in Synthesis and a Synthon in the Design of Materials

Mahmudov

Pombeiro

2016

Chemistry A European J

140

100

View full text Add to dashboard Cite

Resonance-assisted hydrogen bonding (RAHB), a concept introduced by Gilli and co-workers in 1989, concerns a kind of intramolecular H-bonding strengthened by a conjugated π-system, usually in 6-, 8-, or 10-membered rings. This Review highlights the involvement of RAHB as a driving force in the synthesis of organic, coordination, and organometallic compounds, as a handy tool in the activation of covalent bonds, and in starting moieties for synthetic transformations. The unique roles of RAHB in molecular recognition and switches, E/Z isomeric resolution, racemization and epimerization of amino acids and chiral amino alcohols, solvatochromism, liquid-crystalline compounds, and in synthons for crystal engineering and polymer materials are also discussed. The Review can provide practical guidance for synthetic chemists that are interested in exploring and further developing RAHB-assisted synthesis and design of materials.

show abstract

Section: Synthesis Of Oximesmentioning

confidence: 99%

Section: Synthesis Of Oximesmentioning

confidence: 99%

Section: Rahb As a Driving Force In Synthesismentioning

confidence: 99%

Section: Rahb As a Driving Force In Synthesismentioning

confidence: 99%

See 2 more Smart Citations

Resonance‐Assisted Hydrogen Bonding as a Driving Force in Synthesis and a Synthon in the Design of Materials

Mahmudov

Pombeiro

2016

Chemistry A European J

140

100

View full text Add to dashboard Cite

show abstract

“…Ligation of multi-pyridyl ligands to transition metal ions [15e18], especially Ag þ [19,20], forming a diversity of supramolecular structures including stable planar complexes with tri-[21e23] and penta-dentate multi-pyridyl ligands [24], displays a rich range of photoluminescent properties [25,26]. As a tridentate ligand, 4 0 -phenyl-2, 2 0 :6 0 , 2 00 -terpyridine (Phterpy) forms transition metal complexes by ridging a broad variety of metal ions [27e30].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure, characterization and fluorescent properties of Ag+ complexes with extended π⋯π interactions

Huang

Yan

et al. 2015

Journal of Molecular Structure

View full text Add to dashboard Cite

η3-allyl-Pd(II) complexes of 2-, 3- and 4-pyridylmethyl-coumarin esters

et al. 2022

View full text Add to dashboard Cite

A series of 2-, 3-and 4-pyridylmethyl-coumarin esters ligands (1-3) and their η 3 -allyl palladium complexes (1-Pd -3-Pd) have been designed, synthetized and characterized. NMR analysis of compounds 1-Pd -3-Pd indicated the presence of the allyl fragment. The molecular structure of 2, 3 and 1-Pd was determined by X-ray crystallographic analysis. The molecular structure 1-Pd reveals that coumarin ligand (2) is coordinated to the palladium center via a monodentate fashion through the nitrogen atom of the pyridinyl fragment while the allyl group is binding via a η 3 fashion in an overall square-planar geometry completed with a chloride atom. An investigation of intermolecular interactions in crystal packing via a Hirshfeld surfaces and ngerprint plots analyses showed a wide variety of intermolecular contacts such as H•••O and H•••N hydrogen bonding, π•••π stacking, C-H•••π and carbonyl (lone pair)•••π interactions that generated polymeric arrays.

show abstract

Ortho-, meta-, and para-pyridyl oximinoacetoacetates and silver(I)-oximinoacetoacetate networks: Synthesis and X-ray crystallographic analyses

Cited by 6 publications

References 56 publications

Resonance‐Assisted Hydrogen Bonding as a Driving Force in Synthesis and a Synthon in the Design of Materials

Resonance‐Assisted Hydrogen Bonding as a Driving Force in Synthesis and a Synthon in the Design of Materials

Synthesis, structure, characterization and fluorescent properties of Ag+ complexes with extended π⋯π interactions

η3-allyl-Pd(II) complexes of 2-, 3- and 4-pyridylmethyl-coumarin esters

Contact Info

Product

Resources

About