DMF-based ionic liquid promoted efficient cycloaddition of vinylarenes with active alkynes

N,N-Dimethylformamide (DMF) is frequently used as an aprotic solvent in chemical transformations in laboratories of academia as well as in those of chemical industry. In the present review, we will reveal that DMF is actually something much more than a solvent. It is a unique chemical since, as well as being an effective polar aprotic solvent, it can play three other important roles in organic chemistry. It can be used as a reagent, a catalyst, and a stabilizer.

show abstract

“…An AlCl 3 -DMF complex was employed as a catalyst in a Friedel-Cras reaction. [196][197][198] 199 Two…”

Section: Dmf As a Catalystmentioning

confidence: 99%

“…The DMF-based ionic liquid was applied as a nucleophilic reagent and as a solvent for preparing a variety of 1,2 disubstituted-3,4-dihydronaphthalenes 191 by cycloaddition of various vinylarenes 189 with electron-deficient alkynes 190 by Hullio and his group, recently ( Scheme 92 ). 199 …”

Section: Dmf As a Catalystmentioning

confidence: 99%

Beyond a solvent: triple roles of dimethylformamide in organic chemistry

2018

View full text Add to dashboard Cite

show abstract

“…Kusworo et al proposed a hybrid cellulose acetate membrane for increasing eugenol content in clove oil [ 21 ]. Sheikh et al treated different applications already existent for wastewater treatment with polymeric ZnO blended membranes [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Textile Dye on Blended Cellulose Acetate Membranes

et al. 2022

View full text Add to dashboard Cite

This work aimed to investigate the degradation performance of natural cellulose acetate (CA) membranes filled with ZnO nanostructures. Photocatalytic degradation of reactive toxic dye methylene blue (MB) was studied as a model reaction using UV light. A CA membrane was previously casted and fabricated through the phase inversion processes and laboratory-synthesized ZnO microparticles as filler. The prepared membrane was characterized for pore size, ultrafiltration (UF) performance, porosity, morphology using scanning electron micrographs (SEM), water contact angle and catalytic degradation of MB. The prepared membrane shows a significant amount of photocatalytic oxidation under UV. The photocatalytic results under UV-light radiation in CA filled with ZnO nanoparticles (CA/ZnO) demonstrated faster and more efficient MB degradation, resulting in more than 30% of initial concentration. The results also revealed how the CA/ZnO combination effectively improves the membrane’s photocatalytic activity toward methylene blue (MB), showing that the degradation process of dye solutions to UV light is chemically and physically stable and cost-effective. This photocatalytic activity toward MB of the cellulose acetate membranes has the potential to make these membranes serious competitors for removing textile dye and other pollutants from aqueous solutions. Hence, polymer–ZnO composite membranes were considered a valuable and attractive topic in membrane technology.

show abstract

Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes

Zhong

2021

Eur J Org Chem

View full text Add to dashboard Cite

A transition-metal-free, selenium mediated electrophilic cyclization reaction was realized through a one-pot procedure between simple alkynes and triflic anhydride-activated selenoxides to give selenium containing dihydronaphthalene prod-ucts. This method gave good to very high yields for all products, including selenium-substituted phenanthrene, dihydroquinoline, 2H-chromene, and coumarin, which can be further transformed to other functionalized compounds.

show abstract

DMF-based ionic liquid promoted efficient cycloaddition of vinylarenes with active alkynes

Cited by 5 publications

References 11 publications

Beyond a solvent: triple roles of dimethylformamide in organic chemistry

Beyond a solvent: triple roles of dimethylformamide in organic chemistry

Photocatalytic Degradation of Textile Dye on Blended Cellulose Acetate Membranes

Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes

Contact Info

Product

Resources

About