Results 81 to 90 of about 15,688 (280)
Regioselective bromination of 1,4-naphthoquinones
, 1981 1,4-Naphthoquinones unsymmetrically substituted in the benzenoid ring undergo bromination at the 2- and/or 3-positions. The isomeric composition of the products is strongly influenced by the conditions of bromination, addition of hydrogen bromide ...
GI Feutrill, PG Griffiths, DW Cameron
core +1 more source
Probing Type‐II Multiferroicity in Monolayer NiBr2
Advanced Science, EarlyView.Type‐II multiferroicity is demonstrated in monolayer NiBr2. Scanning tunneling microscopy resolves ferroelectric polarization arising from non‐collinear magnetic order, and reciprocal control with electric and magnetic fields confirms intrinsic magnetoelectric coupling.
Aleš Cahlík +7 more
wiley +1 more source
Switchable Site-Selective Benzanilide C(sp2)-H Bromination via Promoter Regulation
MoleculesRegioselective benzanilide bromination that generates either regioisomer from the same starting material is desirable. Herein, we develop switchable site-selective C(sp2)-H bromination by promoter regulation.
Yonghui Sun +6 more
doaj +1 more source
Bromination of 2,5-dimethoxybenzaldehyde
, 1984 Bromination of 2,5-dimethoxybenzaldehyde (1) gives 4-bromo-2,5-dimethoxy-benzaldehyde (2) and not 6-bromo-2f5-dimethoxybenzaldehyde (3) as previously reported by Rubenstein (1925).
Part Time Mohd Zulhimi bin Zolkefali
core
Learning Work Function via Implicit Reasoning on Electrostatic Potential Landscapes
Advanced Science, EarlyView.StructPot‐CLR establishes a cross‐modal contrastive learning framework that aligns the crystal structures of 2D materials with plane‐averaged electrostatic potential landscapes for physically informed work‐function prediction. The model achieves an MAE of 0.265 eV and an R2 of 0.902 on the held‐out test set while accurately preserving key morphological
Haoyu Wan, Yue Wu, Tianhao Su, Deng Pan
wiley +1 more source
Angewandte Chemie, EarlyView.Dibenzo[b,d]selenophene (DBSe) π‐core fusion enables rapid triplet–singlet interconversion while preserving the narrowband emission features of multi‐resonance thermally activated delayed fluorescence (MR‐TADF) luminogens. Combined with peripheral donor engineering, this strategy enables systematic emission tuning from green to red, leading to highly ...
Jingpeng Zhang +4 more
wiley +2 more sources
Thermodynamics and Kinetics in Host Design for Dendrite‐Free Zinc Metal Anodes
Advanced Science, EarlyView.This review comprehensively summarizes recent advances in host design strategies for high‐performance zinc metal anodes, and deeply elucidates their thermodynamic and kinetic design principles from the perspective of surface modification, interface engineering, and spatial confinement.
Peng Xiao Sun +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.Merging silylium‐ion and palladium catalysis provides a mechanistically distinct route to allylsilanes by formal C–H/Si–H metathesis. Using allylsilanes as silicon proelectrophiles, various allylarenes undergo migrative silylation, selectively yielding (E)‐allylsilanes.
Longhui Duan +5 more
wiley +2 more sources
Green Processing and Synthesis, 2016 A simple and environmentally benign procedure for the bromination of substituted α,β-unsaturated ketones in good yield has been described using ammonium bromide as a brominating agent and ceric ammonium nitrate (CAN) as a single-electron oxidant to ...
Totawar Balaji B. +2 more
doaj +1 more source
High temperature bromination .8. Bromination of homobenzonorbornadiene
, 1996 The electrophilic addition of bromine to homobenzonorbornadiene (3) at 10 degrees C led in quantitative yield to the formation of di-anti-bromo adduct 4.
TUMER, Ferhan +3 more
core +1 more source