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Formal [3+2] Cycloaddition Reactions of Electron-Rich Aryl Epoxides with Alkenes under Lewis Acid Catalysis Affording Tetrasubstituted Tetrahydrofurans
(MDPI, 2020)
We report on the regio- and stereoselective synthesis of tetrahydrofurans by reaction
between epoxides and alkenes in the presence of a Lewis acid. This is an unprecedented formal [3+2]
cycloaddition reaction between an ...
Antiplasmodials soulattrolide derivatives from Calophyllum brasiliense and its mechanism of activity
(Elsevier, 2019-03)
Parasitic diseases such as malaria, leishmaniasis, trypanosomia-sis, and schistosomiasis are just one of the main causes of diseaseand death in the world today (WHO, 2016). In 2016, 91 countriesreported a total of 216 ...
The Trend of Chemisorption of Hydrogen and Oxygen Atoms on Pure Transition Metals: Magnetism justifies Unexpected Behaviour of Mn and Cr
(Elsevier, 2020)
The spin of the electron is decisive to understand electronic interactions in heterogeneous catalysis, mainly because the stabilizing Quantum Spin Exchange Interactions (QSEI) are always a significant contribution to the ...
Effect of alkali doping on CIGS photovoltaic ceramic tiles
(Elsevier, 2017)
This report studies the influence of alkali elements (Na, K) to morphological, structural
and optoelectronic properties of CIGS ceramic tile solar cell. Several ceramic enamels
with altered chemical composition in terms ...
Cobalt Minimisation in Violet Co3P2O8 Pigment
(MDPI, 2022-01-31)
This study considers the limitations of cobalt violet orthophosphate, Co3P2O8, in the ceramic industry due to its large amount of cobalt. MgxCo3−xP2O8 (0 ≤ x ≤ 3) solid solutions with the stable Co3P2O8 structure were ...
Synthesis and in-vitro evaluation of s-allyl cysteine ester-caffeic acid amide hybrids as potential anticancer agents
(Shahid Beheshti University of Medical Sciences, School of Pharmacy, 2019)
We have synthesized a series of S-allyl cysteine ester-caffeic acid amide hybrids and evaluated them in order to determine their possible anticancer activity and selectivity in colorectal cancer, which is still one of the ...
Field-induced p-n transition in yttria-stabilized zirconia
(Nature, 2019)
Oxide ion conducting yttria-stabilised zirconia ceramics show the onset of electronic conduction under a small bias voltage. Compositions with a high yttria content undergo a transition from p-type to n-type behavior at ...
A cost-effective combination of Rose Bengal and off-the-shelf cationicpolystyrene for the photodynamic inactivation ofPseudomonas aeruginosa
(Elsevier, 2020)
Two new photoactive materials have been prepared, characterized and tested againstPseudomonas aeruginosabacteria (planktonic suspension). The synthesis of the polymeric photosensitizers can be made at a multigramscale, in ...
Synthesis and Crystal Structure of 6-Bromo-2-(furan-2-yl)-3- (prop-2-ynyl)-3H-imidazo[4,5-b]pyridine
(Hindawi Publishing Corporation, 2013)
The crystal and molecular structure of 6-bromo-2-(furan-2-yl)-3-(prop-2-ynyl)-3H-imidazo[4,5-b]pyridine (C13H8BrN3O) has been investigated from single crystal X-ray diffraction data. The primary focus is to investigate the ...
Synthesis and Antiproliferative Activity of 3 and 7-Styrylcoumarins
(Springer Verlag, 2018)
A series of styrylcoumarins were obtained via Mizoroki-Heck reactions between 3-bromo-4-methyl7-(octyloxy)-2H-chromen-2-one
or 2-oxo-2H-chromen-7-yl trifluoromethanesulfonate and
functionalized styrenes. The structures ...