Results 111 to 120 of about 12,222 (276)
Advanced Science, EarlyView.Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Guan‐Lin Chen +5 more
wiley +1 more source
Regioselective C–H Activation of Substituted Thiophenes
, 2017 Die C–C-Bindungsknüpfung an Thiophenen wurde mittels Pd-katalysierter C–H-Aktivierung eingehend untersucht. Unter anderem gelang die direkte C4-selektive Arylierung mono- und disubstituierter Thiophene mit Organobor-Verbindungen in hohen Ausbeuten und ...
Schnapperelle, Ingo
core
Enantioselective Access to Trifluoromethylated Spirocyclopropyl Heterocycles
Advanced Science, EarlyView.We report a rhodium‐catalyzed asymmetric [2+1] spirocyclopropanation of methylene azacycles with trifluoromethyl carbenes in situ derived from fluoroalkyl triftosylhydrazones. ABSTRACT Chiral spirocyclopropyl heterocycles have emerged as privileged three‐dimensional structural motifs in medicinal chemistry.
Yuanhao Zhu +9 more
wiley +1 more source
Practical Access to Metallo Thiophenes: Regioselective Synthesis of 2,4-Disubstituted Thiophenes
, 2016 This report describes a protocol for functionalization of thiophenes, utilizing a regioselective magnesiation mediated by commercial Grignard reagents and catalytic 2,2,6,6-tetramethylpiperidine.
Ka Yi Ngai (2250466) +3 more
core +1 more source
Dual Nickel/Photoredox‐Catalyzed Regio‐ and Enantioselective Alkenylation of Epoxides
Advanced Science, EarlyView.Ni/photoredox‐catalyzed stereoconvergent cross‐electrophile coupling of racemic epoxides with alkenyl bromides is described, affording β‐alkenyl products with up to 95% ee, excellent E‐selectivity, and complete regiocontrol. These versatile intermediates enable diverse chiral synthons; mechanistic studies suggest a halide ring‐opening followed by ...
Hongyan Lan +4 more
wiley +1 more source
Meitan xuebaoSulfur-containing compounds in shale oil pyrolyzed at varying final temperatures are analyzed using a fixed-bed reactor and a gas chromatography-sulfur chemiluminescence detector (GC-SCD).
Shuo PAN +6 more
doaj +1 more source
Advanced Science, EarlyView.Molecular engineering (i.e., tuning donors) and three film processing strategies (i.e., drop‐casting from different solvents, thermal and solvent vapor annealing, and blending) were synergistically utilized to tailor the solution‐state aggregation and thus the formation, transformation, and interplay of solid‐state crystalline orientation (face‐on and ...
Hao Zheng +9 more
wiley +1 more source
Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma
Advanced Science, EarlyView.This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert +8 more
wiley +1 more source
Ion‐Exchange‐Driven Ternary Organic Neuromorphic Devices with High Efficiency and Stability
Advanced Science, EarlyView.Spontaneous ion exchange in a ternary polymer–ionic liquid blend disrupts the phase‐separated ionic domains of the binary film and creates a more homogeneous polymer–ion environment. This ionically reorganized matrix enables stable and efficient electrochemical doping, leading to ion‐gel‐gated organic electrochemical transistors with enhanced ...
Sungmin Lee +14 more
wiley +1 more source