Results 111 to 120 of about 6,792 (286)

Visible light-promoted dihydroxylation of styrenes with water and dioxygen

, 2017
An efficient visible light promoted metal-free dihydroxylation of styrenes with water and dioxygen has been developed for the construction of vicinal alcohols.
Bo Yang, Zhan Lu
core   +1 more source

Optimizing Stratification in Binary Colloidal Supraparticles

Advanced Science, EarlyView.
Supraparticles from binary particle populations show stratification when dried at high Péclet numbers. In spray‐dried systems at high initial particle concentration and fast drying conditions optimal combinations of particle size ratios and volume fractions that produce maximal stratification are found both in experiment and simulation, contrasting the
Frederic Rudlof, Silas Wolf, Sonja Schaller, Jonathan Martín González, Carsten Schilde, Nicolas Vogel   +5 more
wiley   +1 more source

Combining photoredox and silver catalysis for azidotrifluoromethoxylation of styrenes

, 2018
An intermolecular azidotrifluoromethoxylation of styrenes by synergistic visible-light-mediated photoredox and silver catalysis has been reported for the first time.
Yongliang Wei, Pingping Tang, Fei Cong
core   +1 more source

An Efficient Detection Platform Based on Mesoporous Au@Cr2O3 Particles with Schwarz P Surface for Precise Periodontitis Metabolite Profiling

Advanced Science, EarlyView.
A non‐invasive periodontitis diagnosis platform was developed using Au nanoparticles‐decorated mesoporous Cr2O3 (Au@mCr2O3) particles with Schwarz P surface as matrix for saliva metabolic fingerprinting (SMFs) analysis via MALDI‐MS. With the assistance of machine learning of SMFs, this platform enables efficient diagnosis and the screening of potential
Yue Sun, Yan Wang, Fangying Shi, Wenhe Xie, Yiding Zhang, Heyuhan Zhang, Chunhui Deng, Limin Wu, Meihua Chen, Yonghui Deng   +9 more
wiley   +1 more source

A Mechanistic Study on Iron-Based Styrene Aziridination: Understanding Epoxidation via Nitrene Hydrolysis

Molecules
Transition-metal-catalyzed nitrene transfer reactions are typically performed in organic solvents under inert and anhydrous conditions due to the involved air and water-sensitive nature of reactive intermediates.
Dóra Lakk-Bogáth, Patrik Török, Dénes Pintarics, József Kaizer   +3 more
doaj   +1 more source

Enantioselective dioxytosylation of styrenes using lactate-based chiral hypervalent iodine(III)

Beilstein Journal of Organic Chemistry, 2018
A series of optically active hypervalent iodine(III) reagents prepared from the corresponding (R)-2-(2-iodophenoxy)propanoate derivative was employed for the asymmetric dioxytosylation of styrene and its derivatives.
Morifumi Fujita, Koki Miura, Takashi Sugimura   +2 more
doaj   +1 more source

Nitroxide-Mediated Controlled Radical Copolymerization of α-Trifluoromethylstyrenes with Styrenes

Molecules
Fluorinated polymers are important materials in everyday life; however, most monomers of widely used fluoropolymers are gaseous, and their polymerization is difficult in an ordinary laboratory. Therefore, partially fluorinated polymers have recently been
Tadashi Kanbara, Yuriko Ito, Airi Yamaguchi, Tomoko Yajima   +3 more
doaj   +1 more source

Selective oxidation of styrenes under oxygen catalyzed by cobalt chloride

, 1997
The cobalt(II) chloride-catalyzed oxidative cleavage of α-methylstyrene with oxygen in t-BuOH gives acetophenone and formaldehyde in good yield. The competing reactions between C=C cleavage and formation of polymeric products are strongly affected by the
Li, Pei, Lin, Yuan Hua, Williams, Ian D.
core   +1 more source

A Dual‐Modal Wearable PPG Smartwatch with AI‐Enhanced Correction for High‐Accuracy and Continuous AF Burden Assessment

Advanced Science, EarlyView.
ABSTRACT Atrial fibrillation (AF) increases the risk of stroke and heart failure, yet accurate quantification of AF burden in daily life remains difficult. Although smartwatch photoplethysmography (PPG) supports continuous monitoring, complex rhythms and signal noise can impair burden estimation.
Song Zuo, Jinglei Wang, Xin Wang, Han Feng, Yize Zhao, Fadong Li, Shaobin Wei, Le Zhou, Zixu Zhao, Songjie Chen, Xiangyi Kong, Jue Wang, Liu He, Shijun Xia, Xin Li, Junmeng Zhang, Xiaoxia Liu, Xueyuan Guo, Ning Zhou, Songnan Li, Chenxi Jiang, Ribo Tang, Caihua Sang, Deyong Long, Xin Du, Jianzeng Dong, Wenwu Zhu, Changsheng Ma   +27 more
wiley   +1 more source

Palladium-Assisted (Z)-(E) isomerization of styrenes

, 1990
It is shown that treatment of stereoisomeric mixtures of styrenes with a catalytic amount of bis ( acetonitrile ) dichloropalladium (II) achieves smooth stereoisomerization of the (Z)-isomers to the (E ...
Son, V.R.L., Sargent, M.V., Giles, R.G.F.   +2 more
core