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Light on the horizon: Current research and future perspectives in flow photochemistry
(American Chemical Society, 2018-09)
Synthetic organic photochemistry is a powerful tool for creating both natural products and molecules with high structural complexity in a simple way and under mild conditions. However, because of the challenges in scaling-up, ...
Del nitrógeno en la urea al nitrógeno del suelo
(Facultad de Agronomía, Universidad Nacional de La Pampa, 2022-05-01)
El nitrógeno (N) forma parte de las células vegetales y es un elemento esencial para su crecimiento y funcionamiento. Es indispensable para la síntesis de proteínas, en particular de la clorofila y, como parte de dicha ...
Microwave-Assisted Organocatalytic Intramolecular Knoevenagel/Hetero Diels–Alder Reaction with O -(Arylpropynyloxy)-Salicylaldehydes: Synthesis of Polycyclic Embelin Derivatives
(American Chemical Society, 2016-10)
highly efficient and regioselective approach to new polycyclic embelin derivatives through a domino Knoevenagel condensation/intramolecular hetero Diels−Alder reaction using O-(arylpropynyloxy)-salicylaldehydes in the ...
Photoisomerization of ionic liquid ammonium cinnamates: One-pot synthesis-isolation of Z-cinnamic acids
(American Chemical Society, 2010-11)
Photoisomerization presents the only direct method for contra-thermodynamic E-Z isomerization of olefins. Synthetic applications of this method have been limited by its reversible nature, which leads to a photostationary-state ...
Enzymatic Synthesis of Amorphous Calcium Phosphate−Chitosan Nanocomposites and Their Processing into Hierarchical Structures
(American Chemical Society, 2008-01)
Nanocomposites of amorphous calcium phosphate (ACP) nanoparticles embedded within chitosan (CHI) have been prepared through an enzymatically assisted route. Cryogenic processing (ISISA) of hydrogel nanocomposites has allowed ...
"Transition-metal-free" synthesis of carbazoles by photostimulated reactions of 2′-halo[1,1′-biphenyl]-2-amines
(American Chemical Society, 2014-12)
An efficient and simple protocol for the preparation of a series of 9H-carbazoles by photostimulated SRN1 substitution reactions is presented. Substituted 9H-carbazoles were synthesized in low to excellent yields (up to ...
Total Synthesis of Waltherione F, a Nonrutaceous 3-Methoxy-4-quinolone, Isolated from Waltheria indica L. F.
(American Chemical Society, 2018-08)
Waltherione F was totally synthesized in seven steps and 31% overall yield from 2-nitro-3-methylanisole without the use of protecting groups. Key steps in the sequence were a Suzuki-Miyaura coupling to attach the n-octyl ...
Levoglucosenone and Its New Applications: Valorization of Cellulose Residues
(Wiley VCH Verlag, 2018-02)
The need to find sustainable alternatives to reduce the dependence on fossil sources has led to significant research efforts on the conversion of biomass into platform chemicals. Modern organic chemistry requires easily ...
Deposition and characterization of CuInSe2 films for solar cells using an optimized chemical route
(Elsevier Science, 2011)
Development of a simple process to obtain luminescent YVO4:Eu3+ nanoparticles for Fiber Optic Dosimetry
(Elsevier Science SA, 2020-07-03)
YVO4:Eu3+ is a red emitter phosphor commercially available as micrometric powder due to its high luminescence efficiency under electron-beam excitation. Although some published results have demonstrated the potential of ...