Results 81 to 90 of about 426,599 (311)

Crystal structure of 2-(8-bromo-2-phenylimidazo[1,2-α]pyridin-3-yl)-6,7-dimethyl-3-phenylquinoxaline, C29H21BrN4

Zeitschrift für Kristallographie - New Crystal Structures, 2018
C29H21BrN4, orthorhombic, Pca21 (no. 29), a = 15.6577(5) Å, b = 9.6445(3) Å, c = 31.1869(10) Å, V = 4709.6(2) Å3, Z = 8, Rgt(F) = 0.0435, wRref(F2) = 0.0779, T = 293(2) K.
Song Gui Ting, Meng Jiang Ping, Zhu Jin
doaj   +1 more source

Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]

, 2017
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E, Hudson, Brandi M, Romo, Daniel, Tantillo, Dean J   +3 more
core   +2 more sources

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich, Jonathan A. Gernert, Hanna Zimmermann, Lisa Tagnin, Marianthi Zeinaki, Laura Sanzo, Letizia Vogler, Elisabeth Kaufmann, Justina Dargvainiene, Frank Leypoldt, Gérard N. Bischof, Robert Perneczky, Boris‐Stephan Rauchmann, Simon Lindner, Günter U. Höglinger, Rudolf A. Werner, Martin Kerschensteiner, Tania Kümpfel, Matthias Brendel, Franziska S. Thaler   +19 more
wiley   +1 more source

Giant asymmetric self-phase modulation in superconductor thin films

, 2017
Self-phase modulation (SPM) of light pulses is found to occur strongly, at low incident intensities, in the coupling of light with superconductors. We develop a theory from a synthesis of the time-dependent Ginzburg-Landau (TDGL) equation and basic ...
Biancalana, Fabio, Robson, Charles
core   +1 more source

The diastereoselective Meth-Cohn epoxidation of camphor-derived vinyl sulfones [PDF]

, 2012
Some camphor-derived vinyl sulfones bearing oxygen functionality at the allylic position have been synthesized and their nucleophilic epoxidation reactions under Meth-Cohn conditions have been explored.
Adam, Adamczyk, Adams, Aggarwal, Alba, Armstrong, Armstrong, Ashwell, Ashwell, Back, Bailey, Bos, Bos, Briggs, Briggs, Bueno, Bäckvall, Chemla, Christopher Meadows, Clark, Craig, Craig, Culvenor, David H. Grayson, El-Awa, Evans, Evans, Evans, Evans, Evans, Evans, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Forristal, Frank W. Lewis, Garrabou, Gnas, Gordon Hill, Hernandez, Hewkin, Jackson, Jackson, Jackson, Jackson, Jackson, Jackson, Jackson, Kurt Dolence, Lacour, Lacour, Langlois, Lewis, Lewis, Li, Liu, Llamas, Magnus, Mauleon, McLaughlin, Meggers, Meth-Cohn, Milen, Mori, Mosse, Moure, Narasimha Rao, Nishide, Node, Oppolzer, Pellissier, Pinho e Melo, Pinho e Melo, Polywka, Roos, Satoh, Shu, Simpkins, Solladié-Cavallo, Solladié-Cavallo, Sulzer-Mosse, Toru, Trost, Tsogoeva, Van Rheenen, Weitz, Wessel, Yoo, Zhu, Zwanenburg   +91 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Asymmetric Synthesis of 1-Heteroaryl-1-arylalkyl Tertiary Alcohols and 1-Pyridyl-1-arylethanes by Lithiation-Borylation Methodology [PDF]

, 2013
The synthesis of highly enantioenriched alpha-heterocyclic tertiary alcohols has been achieved via lithiation-borylation of a configurationally stable lithiated carbamate and heterocyclic pinacol boronic esters followed by oxidation. Protodeboronation of
Aggarwal V. K., Biradar D. B., Biradar D. B., Carstens A., Charlotte G. Watson, Chen C.-A., Cozzi P. G., Dosa P. I., García C., García C., García C., Garg D. C., Greene M. A., Hatano M., Hatano M., Hatano M., Hoppe D., Hu Q., Kanai M., Luderer M. R., Madduri A. V. R., Madduri A. V. R., Maity P., Matsunaga N., Messaoudi S., Moree W. J., Nave S., Ou L., Pathak T. P., Ramón D. J., Ramón D. J., Shi S.-L, Shibasaki M., Song S., Starck J. P., Stymiest J. L., Taylor B. L. H., Varinder K. Aggarwal, Wada R., Weber B., Yus M., Yus M.   +41 more
core   +3 more sources

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Acceptor engineering of BTBT derived donor materials for high performance organic solar cells via density functional and time dependent density functional theory

Discover Applied Sciences
Creating donor-π-acceptor (D-π-A) molecular systems is an important strategy to further increase the efficiency of organic solar cells (OSCs). In this work, we have explored the optoelectronic effects of structural modifications on the reported small ...
Walid Taouali, Kamel Alimi
doaj   +1 more source