ChemInform Abstract: Advances in Synthetic Approach to and Antifungal Activity of Triazoles

Shalini, Kumari; Kumar, Nitin; Drabu, Sushma; Sharma, Pramod Kumar

doi:10.1002/chin.201139254

Cited by 5 publications

(7 citation statements)

References 1 publication

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“…So, the low energy band may be assigned to spin-forbidden 3 MLCT and 3 LLCT transitions along with 1 MLCT transition [80]. The strong covalency of the carbon–metal bonds attributes to the mixed character of HOMO being delocalized on the metal and on the cyclometalating ligand [65–67]. The LUMOs are mainly (77.21–82.65%) composed of Schiff base ligand L1 and L2 and contributions from metal d-orbitals are not insignificant.…”

Section: Resultsmentioning

confidence: 99%

Cyclometalated rhodium and iridium complexes with imidazole containing Schiff bases: Synthesis, structure and cellular imaging

et al. 2014

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Cyclometalated rhodium(III) and iridium(III) complexes (1–4) of two Schiff base ligands L1 and L2 with the general formula [M(ppy)2(Ln)]Cl {M = Rh, Ir; ppy = 2-phenylpyridine; n = 1, 2; L = Schiff base ligand} have been synthesized. The new ligands and the complexes have been characterized with spectroscopic techniques. Electrochemistry of the complexes revealed anodic behavior, corresponding to an M(III) to M(IV) oxidation. The X-ray crystal structures of complexes 2 and 4 have also been determined to interpret the coordination behavior of the complexes. Photophysical study shows that all the complexes display fluorescence at room temperature with quantum yield of about 3 × 10–2 to 5 × 10−2. The electronic absorption spectra of all the complexes fit well with the computational studies. Cellular imaging studies were done with the newly synthesized complexes. To the best of our knowledge, this is the first report of organometallic complexes of rhodium(III) and iridium(III) with Schiff base ligands explored for cellular imaging. Emphasis of this work lies on the structural features, photophysical behavior, cellular uptake and imaging of the fluorescent transition metal complexes.

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Section: Resultsmentioning

confidence: 99%

Cyclometalated rhodium and iridium complexes with imidazole containing Schiff bases: Synthesis, structure and cellular imaging

et al. 2014

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“…Utilization of α , β ‐unsaturated 2‐acyl imidazoles in the stereoselective synthesis of 1,7‐dioxo compounds would be more desirable as the pharmacologically relevant imidazole ring [10] is widely found in natural products [11] and organocatalysts [12] . As a result, novel enantioselective approaches have been devised by employing α , β ‐unsaturated 2‐acyl imidazoles as a favored substrate [13] .…”

Section: Introductionmentioning

confidence: 99%

Enantioselective Vinylogous Mukaiyama‐Michael Reaction of Silyl Ketene Acetals to α,β‐Unsaturated 2‐Acyl Imidazoles to Construct 1,7‐dioxo Compounds

Gill,

Das,

Singh

2024

Asian J Org Chem

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The synthesis of chiral 1,7‐dioxo compounds via Sc(III)‐pybox catalyzed vinylogous Mukaiyama‐Michael reaction of vinyl ketene silyl acetals with α,β‐unsaturated 2‐acyl imidazoles has been described. This innovative approach to the formation of chiral 1,7‐dioxo compounds illustrates excellent regio‐, and enantioselectivities, demonstrating a broad substrate scope. So far, to the best of our knowledge, this is the first example of a metal‐catalyzed asymmetric vinylogous Mukaiyama‐Michael reaction using vinyl ketene silyl acetals.

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“…[ 34 ] Another approach is to use imidazole group, a planar heterocyclic ring with two nitrogen atoms located at the first and third positions, which forms dynamic interactions with carboxylic groups such as those in PAA. [ 35–39 ] For instance, Jithunsa et al. investigated the proton conductivity of poly(4‐vinylimidazole‐ co ‐acrylic acid) membranes by introducing different feed ratios of 4‐vinylimidazole.…”

Section: Introductionmentioning

confidence: 99%

3D‐Printed Poly(acrylic acid–vinylimidazole) Ionic Polymer Metal Composite Actuators

Wang

Liang

Bansode

et al. 2022

Macro Materials & Eng

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Ionic polymer–metal composites (IPMC)—constructed using an ionic polymer sandwiched between metal electrodes—have shown great potential for the fabrication of soft actuators. IPMC architectures have many advantages including low actuation voltage, fast response, basic control, and relatively light weight. Poly(acrylic acid) (PAA)‐based ion exchange membranes are of particular interest for IPMC devices due to their large ion exchange capacity and ease of preparation; however, they suffer from relatively weak mechanical strength. Here, PAA‐based soft actuators are synthesized with enhanced mechanical properties and proton conductivity through the incorporation of hydrogen bonding interactions with imidazolium groups via copolymerization with 1‐vinylimidazole. In addition to examining the impact of composition on physiochemical (swelling, glass transition, decomposition, Young's modulus, etc.) and electrochemical (specific capacitance) properties, an additive manufacturing process, digital light projection (DLP), is utilized to fabricate complex geometries demonstrating the potential for the fabrication of IPMC devices with complex actuation modalities. Planar DLP 3D‐printed IPMC actuators of varied polymer compositions are fabricated with activated carbon and copper electrodes, and their actuation performance is evaluated in air, where large bending deformation is observed (14°–37°).

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ChemInform Abstract: Advances in Synthetic Approach to and Antifungal Activity of Triazoles

Abstract: Review: 75 refs.

Cited by 5 publications

References 1 publication

Cyclometalated rhodium and iridium complexes with imidazole containing Schiff bases: Synthesis, structure and cellular imaging

Cyclometalated rhodium and iridium complexes with imidazole containing Schiff bases: Synthesis, structure and cellular imaging

Enantioselective Vinylogous Mukaiyama‐Michael Reaction of Silyl Ketene Acetals to α,β‐Unsaturated 2‐Acyl Imidazoles to Construct 1,7‐dioxo Compounds

3D‐Printed Poly(acrylic acid–vinylimidazole) Ionic Polymer Metal Composite Actuators

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