Hybrid nanomaterials for asymmetric purposes: green enantioselective C–C bond formation by chiralization and multi-functionalization approaches

2020 ◽  
Vol 10 (24) ◽  
pp. 8240-8253 ◽  
Author(s):  
Sayed Ali Akbar Razavi ◽  
Kayhaneh Berijani ◽  
Ali Morsali
Keyword(s):  
Bond Formation ◽  
Hybrid Nanomaterials ◽  
Hybrid Nanomaterial ◽  
Novel Strategy

We present a simple and novel strategy for synthesis of a MOF-based chiral multi-functional hybrid nanomaterial through chiralization and multi-functionalization approaches for asymmetric purposes.

Synthetization and optical nonlinearity investigation of novel Fe3O4@Ti3C2 MXene hybrid nanomaterials from 1 to 2 μm

2020 ◽  
Author(s):  
Tong Zhang ◽  
Hongwei Chu ◽  
Dong Li ◽  
Ying Li ◽  
Shengzhi Zhao ◽  
...  
Keyword(s):  
Strong Interaction ◽  
Optical Nonlinearity ◽  
Hybrid Nanomaterials ◽  
Comprehensive Investigation ◽  
Hybrid Nanomaterial ◽  
Morphology And Structure

In the present work, we synthesize a Fe3O4@Ti3C2 MXene hybrid nanomaterial. Comprehensive investigation on the morphology and structure of the prepared Fe3O4@Ti3C2 MXene demonstrates the strong interaction between Ti3C2 MXene...

Numerical treatment of melting heat transfer and entropy generation in stagnation point flow of hybrid nanomaterials (SWCNT-MWCNT/engine oil)

2021 ◽  
Vol 35 (06) ◽  
pp. 2150102
Author(s):  
Ikram Ullah ◽  
Tasawar Hayat ◽  
Ahmed Alsaedi ◽  
Habib M. Fardoun
Keyword(s):  
Velocity Slip ◽  
Engine Oil ◽  
Stretching Cylinder ◽  
Entropy Analysis ◽  
Hybrid Nanomaterials ◽  
Hybrid Nanomaterial ◽  
Order Analysis ◽  
Governing System ◽  
Oil Flow ◽  
Melting Effect

Present attempt inspects the entropy analysis and melting effect in flow of hybrid nanomaterials consisting of CNTs nanoparticles and engine oil Flow is by a stretching cylinder. Formulation is accountable to the viscous dissipation, velocity slip and thermal radiation impacts. In order to estimate the disorder within the thermo-physical frame, second-order analysis has been used. The governing system with the imposed boundary condition is dimensionless via proper variables. Numerical outcomes are expressed graphically and analyzed. Comparison of hybrid nanomaterial, nanomaterials and regular liquid is expressed graphically. Outcomes indicate that the hybrid nanomaterials have great impact throughout the inspection than the ordinary nanomaterials.

ChemInform Abstract: Copper Catalyzed C-N Bond Formation via a Sequential Acylation and Deacylation Process: A Novel Strategy for the Synthesis of Benzanilides.

ChemInform ◽  
2015 ◽  
Vol 46 (26) ◽  
pp. no-no
Author(s):  
Saurabh Kumar ◽  
Rajeshwer Vanjari ◽  
Tirumaleswararao Guntreddi ◽  
Krishna Nand Singh
Keyword(s):  
Bond Formation ◽  
Novel Strategy

Copper catalysed C–N bond formation via a sequential acylation and deacylation process: a novel strategy for the synthesis of benzanilides

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9920-9924 ◽  
Author(s):  
Saurabh Kumar ◽  
Rajeshwer Vanjari ◽  
Tirumaleswararao Guntreddi ◽  
Krishna Nand Singh
Keyword(s):  
Bond Formation ◽  
Copper Catalysis ◽  
Novel Strategy ◽  
Oxidative Amidation

An efficient oxidative amidation of aldehydes using acetanilides as amine component has been developed by copper catalysis. The approach is versatile and proceeds through sequential acylation and deacylation to afford benzanilides.

scholarly journals Iodine-mediated C–N and N–N bond formation: a facile one-pot synthetic approach to 1,2,3-triazoles under metal-free and azide-free conditions

RSC Advances ◽  
2019 ◽  
Vol 9 (46) ◽  
pp. 27021-27031 ◽  
Author(s):  
Geeta Sai Mani ◽  
Kavitha Donthiboina ◽  
Siddiq Pasha Shaik ◽  
Nagula Shankaraiah ◽  
Ahmed Kamal
Keyword(s):  
Transition Metal ◽  
Bond Formation ◽  
Synthetic Approach ◽  
One Pot ◽  
Metal Free ◽  
Novel Strategy

A novel strategy towards the synthesis of 1,4-disubstituted 1,2,3-triazoles via C–N and N–N bond formation has been demonstrated under transition metal-free and azide-free conditions.

Transition-metal-free oxidative carboazidation of acrylamides via cascade C–N and C–C bond-forming reactions

2014 ◽  
Vol 12 (25) ◽  
pp. 4329-4334 ◽  
Author(s):  
Jun Qiu ◽  
Ronghua Zhang
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Efficient Method ◽  
Bond Formation ◽  
Cascade Process ◽  
Metal Free ◽  
Bond Forming ◽  
Bond Forming Reactions ◽  
Radical Cascade ◽  
Novel Strategy

A novel transition-metal-free oxidative carboazidation of acrylamides using inexpensive NaN3 and K2S2O8 was achieved, which not only provided an efficient method to prepare various N3-substituted oxindoles, but also represented a novel strategy for C–N and C–C bond formation via a free-radical cascade process.

scholarly journals Antimicrobial Activity of Hybrid Nanomaterials Based on Star and Linear Polymers of N,N′-Dimethylaminoethyl Methacrylate with In Situ Produced Silver Nanoparticles

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3037 ◽  
Author(s):  
Paulina Teper ◽  
Anna Sotirova ◽  
Violeta Mitova ◽  
Natalia Oleszko-Torbus ◽  
Alicja Utrata-Wesołek ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Antibacterial Properties ◽  
Star Polymer ◽  
Linear Polymers ◽  
Bacterial Strains ◽  
Hybrid Nanomaterials ◽  
Hybrid Nanomaterial ◽  
Dimethylaminoethyl Methacrylate

Well-defined linear and multi-arm star polymer structures were used as the templates for in situ synthesis and stabilization of silver nanoparticles (AgNPs). This approach led to hybrid nanomaterials with high stability and antibacterial activity to both Gram-positive and Gram-negative bacterial strains. The ecologically friendly so called “green” synthesis of nanomaterials was performed through AgNPs preparation in the aqueous solutions of star and linear poly(N,N′-dimethylaminoethyl methacrylate)s (PDMAEMAs); the process was followed with time. The size, shape, and zeta potential of the obtained hybrids were determined. To our knowledge, this is the first time that the antibacterial activity of PDMAEMA hybrid nanomaterial against Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa was investigated and assessed by minimum inhibitory concentration (MIC) and minimum biocidal concentration (MBC). Completely quaternized with ethyl bromide, star and linear PDMAEMAs were used in comparative biological tests. The modification of the polymers with in situ-formed AgNPs increased the antibacterial properties against all studied strains of bacteria by several times in comparison to non-modified polymers and quaternized polymers. These results yield novel nanohybrid materials that can be useful for applications in medicine and biology.

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