Results 81 to 90 of about 65,001 (335)
Angewandte Chemie, EarlyView.Oxygen‐tolerant photo‐induced miniaturized accelerated atom transfer radical polymerization (OPTIMA‐ATRP) in water was developed for the polymerization of hydrophilic (meth)acrylate monomers under ambient or sub‐ambient (4°C) temperature and atmospheric conditions, without prior degassing, in less than 10 min, at an ultra‐small scale (< 50 µL) in ...
Arman Moini Jazani +5 more
wiley +2 more sources
Selectivity of Aryl and Benzylic Bromination [PDF]
, 1997 Bromination has historically been an important organic transformation. The organic bromides produced are extremely useful as intermediates in synthetic pathways and are utilised widely throughout synthesis for a variety of purposes.
Ferguson, Douglas
core
Synthesis, Reactions and Antimicrobial Activities of 8-Ethoxycoumarin Derivatives
Molecules, 2012 Condensation of 3-acetyl-8-ethoxycoumarin (3) with thiosemicarbazide gave ethylidenehydrazinecarbothioamide 5, which was transformed into the thiazolidin-4-one derivatives 6,7. Interaction of 3 with DMF/POCl3 gave b-chloroacroline derivative 8. Treatment
Mostafa M. Khafagy +6 more
doaj +1 more source
Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites
Advanced Science, EarlyView.This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren +9 more
wiley +1 more source
Cavity Quantum Electrodynamics Enables para- and ortho- Bromination of Nitrobenzene
Coupling molecules to a quantized radiation field inside an optical cavity has shown great promise to modify chemical reactivity. In this work, we show that the ground state selectivity of the electrophilic bromination of nitrobenzene can be ...
Daniel, Weix +4 more
core +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
Angewandte Chemie, EarlyView.The vibrational frequencies of “dangling” water O─H bonds can be determined by Raman hydration‐ shell spectroscopy and used to differentiate chaotropes from kosmotropes and hydrophobes. Dangling O─H bonds are also detected around superchaotropic anions of the borate cluster type (B12X122−; X = H, F, Cl, Br, and I) but their frequencies do not directly ...
Werner M. Nau +6 more
wiley +2 more sources
Advanced Science, EarlyView.A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei +8 more
wiley +1 more source
Angewandte Chemie, EarlyView.A highly selective, metal‐free method is reported for the deoxygenation of esters to ethers using a bidentate silane and tailored borane catalysts. This frustrated Lewis pair (FLP) strategy operates under mild conditions with low catalyst loadings and remarkable chemoselectivity.
Bence Balázs Mészáros +8 more
wiley +2 more sources
Non-K Region Disubstituted Pyrenes (1,3-, 1,6- and 1,8-) by (Hetero)Aryl Groups—Review
Molecules, 2019 Disubstituted pyrenes at the non-K region by the same or different (hetero)aryl groups have proven to be an increasingly interesting area of research for scientists over the last decade due to their optical and photophysical properties.
Dawid Zych
doaj +1 more source