Results 91 to 100 of about 332,408 (303)
Merchant Electricity Transmission Expansion: A European Case Study [PDF]
We apply a merchant transmission model to the trilateral market coupling (TLC) arrangement among the Netherlands, Belgium and France as a generic example, and note that it can be applied to any general market splitting or coupling of Europe's different ...
Juan Rosellón, Tarjei Kristiansen
core
Mechanochemical Hydrodeoxygenations
European Journal of Organic Chemistry, EarlyView.A silver‐catalyzed mechanochemical hydrodeoxygenation with triethylsilane as reductant allows to convert ketones to the corresponding methylene derivatives in good yields after a short reaction time. Selected examples show that also alcohols, ethers, and sulfoxides can react. In this work, a mechanochemical hydrodeoxygenation (HDO) was developed. Using
Lena M. Hanek, Carsten Bolm
wiley +1 more source
Biologia Plantarum, 2010 Hypericin, a naphthodianthrone, has been identified as the principal active compound found in St. John's wort (Hypericum perforatum L.). To generate a gene resource for hypericin and other valuable metabolites, we generated expressed sequence tags (ESTs)
M. L. Jin +5 more
doaj +1 more source
A method for localizing energy dissipation in blazars using Fermi variability [PDF]
, 2012 The distance of the Fermi-detected blazar gamma-ray emission site from the supermassive black hole is a matter of active debate. Here we present a method for testing if the GeV emission of powerful blazars is produced within the sub-pc scale broad line ...
Abdo +26 more
core +4 more sources
European Journal of Organic Chemistry, EarlyView.This work describes the synthesis of lactose‐ and glucose‐derived chiral ligands and their application in the catalytic enantioselective Friedel–Crafts alkylation of indole with a series of trans‐β‐nitrostyrenes. The optimal ligand was an acetate protected, lactose‐derived pyridyl imine and its zinc complex afforded ees up to 93% and yields up to 93 ...
Sandra Bulawa +2 more
wiley +1 more source
Isolation of new racemic sugar (D/L galacturonic acid) from leaves of Paederia foetida Linn. [PDF]
, 2011 New racemic sugars (D/L galacturonic acid) were isolate from the leaves of Paederia foetida Linn by the column chromatography.
Hans Raj Bhatt +5 more
core +2 more sources
A Direct Method to Prepare Zwitterionic Organotrifluoroborates: Ammonium and Sulfonium Derivatives
European Journal of Organic Chemistry, EarlyView.Organotrifluoroborates find applications in synthesis, diagnostics, and theranostics. This study outlines a one‐step reaction for producing ammonium and sulfonium trifluoroborate zwitterion derivatives. This method achieves satisfactory yields without the need for expensive reagents.
Vanessa Re +6 more
wiley +1 more source
Photochemical Decatungstate‐Catalyzed Hydroacylation of Maleimides
European Journal of Organic Chemistry, EarlyView.A photocatalytic protocol to access substituted succinimides via tetra‐n‐butylammonium decatungstate photocatalysis is reported. This direct radical‐driven hydroacylation of a variety of N‐substituted maleimides shows tolerance to various aldehydes (or alkanes), affording differentially substituted succinimides in high yields. Succinimides constitute a
Manos V. G. Lantzanakis +2 more
wiley +1 more source
POLYEXTRACTION OF HERBS OF ECHINACEA BY SYSTEMS OF EXTRACENTS WITH RISING POLARITY
Разработка и регистрация лекарственных средств, 2019 The process of extracting the Echinacea herbs (Echinacea Moench) has been developed with a series of water-alcohol solutions with an alcohol concentration of 70%, 40%, 20%. Extraction was carried out in the vacuum boiling mode with periodic pulsations of
V. A. Vainshtein +5 more
doaj