Results 31 to 40 of about 45,125 (278)
Conformations and coherences in structure determination by ultrafast electron diffraction [PDF]
, 2009 In this article we consider consequences of spatial coherences and conformations in diffraction of (macro)molecules with different potential energy landscapes.
Lin, Milo M. +2 more
core +2 more sources
Angewandte Chemie, EarlyView.This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis +2 more
wiley +2 more sources
Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides
Angewandte Chemie, EarlyView.A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu +4 more
wiley +2 more sources
A mechanistic study on the phototoxicity of atorvastatin: singlet oxygen generation by a phenanthrene-like photoproduct [PDF]
, 2009 Atorvastatin calcium (ATV) is one of the most frequently prescribed drugs worldwide. Among the adverse effects observed for this lipid-lowering agent, clinical cases of cutaneous adverse reactions have been reported and associated with photosensitivity ...
IESCE, MARIA ROSARIA +4 more
core +1 more source
Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation
Angewandte Chemie, EarlyView.A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang +6 more
wiley +2 more sources
From Stilbenes to carbo‐Stilbenes: an Encouraging Prospect
Chemistry – A European JournalAbstractBeyond previously described carbo‐naphthalene and carbo‐biphenyl, a novel type of bis‐carbo‐benzenic molecules is envisaged from the stilbene parent. The synthesis, structure, spectroscopic and electrochemical properties of two such carbo‐stilbenes are described at complementary experimental and computational DFT levels. In the selected targets,
Zhu, Chongwei +6 more
openaire +4 more sources
Deactivation of biacetyl triplets by cyanocobaltate(III) complexes [PDF]
, 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
OENO 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
Reduction of diphenylacetylene using Al powder in the presence of noble metal catalysts in water [PDF]
, 2016 Diphenylacetylenes can be reduced to the corresponding diphenylethanes (2) in water in excellent yield using Al powder and Pd/C at 60 °C for 3 h in a sealed tube.
Kowser, Zannatul +3 more
core +1 more source
On the Preparation of Stilbene Crystals [PDF]
Review of Scientific Instruments, 1952 A method of preparing large stilbene crystals suitable for use in scintillation counters is presented.
openaire +2 more sources