Results 31 to 40 of about 44,745 (234)

(Poly)Borylated Species as Modern Reactive Groups toward Unusual Synthetic Applications

open access: yesAngewandte Chemie, EarlyView.
In this review, we spotlight recent breakthroughs in α‐polyboron‐substituted carbon‐centered intermediates (carbanion, carbocation, radical, and carbene) and polyborylated alkenes. By bridging fundamental reactivity with the application potential of these extraordinary species, we hope this review will serve as a roadmap for harnessing these unique ...
Nadim Eghbarieh   +5 more
wiley   +2 more sources

Fast pyrolysis of halogenated plastics recovered from waste computers [PDF]

open access: yes, 2006
The disposal of waste computers is an issue that is gaining increasing interest around the world. In this paper, results from the fast pyrolysis in a fluidized bed reactor of three different waste computer monitor casings composed of mainly ...
Aracil I.   +20 more
core   +1 more source

Dispersion-Enhanced Nitrogen-Centered Photocatalysis of the Direct Hydrogen Atom Transfer. [PDF]

open access: yesAngew Chem Int Ed Engl
Nitrogen‐centered acridine photocatalysts for direct hydrogen atom transfer have been developed, leveraging dispersion interactions to enhance photocatalytic activity. This approach enables diverse functionalization reactions of strong C─H bonds even under cryogenic conditions and provides a new strategy for boosting the efficiency of direct HAT ...
Zhang J   +16 more
europepmc   +3 more sources

Model-based Design Evaluation of a Compact, High-Efficiency Neutron Scatter Camera

open access: yes, 2017
This paper presents the model-based design and evaluation of an instrument that estimates incident neutron direction using the kinematics of neutron scattering by hydrogen-1 nuclei in an organic scintillator.
Brubaker, Erik   +3 more
core   +1 more source

Deactivation of biacetyl triplets by cyanocobaltate(III) complexes [PDF]

open access: yes, 1972
The rate of electronic energy transfer from biacetyl triplets to Co(CN)_(5)(X)^(n–)(X = CN^–, MeCN, pyridine, N_(3)^–, H_(2)O, or SCN^–) is strongly dependent on the energy of the first spin-allowed d–d transition of Co(CN)_(5)(X)^(n–), and (for X = CN^–,
Bredesen, Dale   +3 more
core   +1 more source

Stilbenes in the different organs of Vitis vinifera cv. Merlot grafted on Teleki Kober 5BB rootstock

open access: yesOENO One, 2017
Aim: To determine which of the grapevine organ is the richest in stilbene, like the t-piceid, t-resveratrol and ε-viniferin and would it be useful as by-product of viticulture for processing stilbene concentrate. Methods and results: Nine organs, such as
Gyöngyi Németh   +3 more
doaj   +1 more source

A dimeric stilbene extract produced by oxidative coupling of resveratrol active against Plasmopara viticola and Botrytis cinerea for vine treatments

open access: yesOENO One, 2020
Aim: Stilbenes are a group of polyphenols that contribute to the defense mechanisms of grapevine under stress conditions. The main active compounds are oligomeric stilbenes. The sourcing of such compounds is limited by plant raw material availability. In
Toni El Khawand   +10 more
doaj   +1 more source

A Simple Nickel Catalyst Enabling an E‐Selective Alkyne Semihydrogenation [PDF]

open access: yes, 2019
Stereoselective alkyne semihydrogenations are attractive approaches to alkenes, which are key building blocks for synthesis. With regards to the most atom economic reducing agent dihydrogen (H 2 ), only few catalysts for the challenging E ‐selective ...
Kaewmee, Benyapa   +3 more
core   +1 more source

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

open access: yesAdvanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu   +8 more
wiley   +1 more source

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