Results 31 to 40 of about 7,389 (151)
Advanced Materials, EarlyView.Specific ortho‐halogenation transforms crystalline TADF emitters into efficient organic scintillators. Fluorine reduces the effective singlet–triplet separation, while chlorine combines near‐degenerate excited states with vibrational modulation of spin–orbit coupling.
Illia E. Serdiuk +8 more
wiley +1 more source
Site-selective chlorination of pyrrolic heterocycles by flavin dependent enzyme PrnC
Communications ChemistryHalogenation of pyrrole requires strong electrophilic reagents and often leads to undesired polyhalogenated products. Biocatalytic halogenation is a highly attractive approach given its chemoselectivity and benign reaction conditions.
GuangRong Peh +14 more
doaj +1 more source
Semi‐Telechelic Polymers from Mechanochemical C─C Bond Activation
Advanced Science, 2023 Unstrained C─C bond activation is attained in homopolymers through mechanochemical bond scission followed by functionalization to yield mostly semi‐telechelic polymer chains.
Rony Schwarz, Charles E. Diesendruck
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Advanced Energy Materials, EarlyView.Kinetic–energetic projection of time‐resolved photoluminescence reveals that charge‐transfer injection acts as a universal bottleneck in organic solar cells. A physics‐constrained Bayesian framework identifies an emergent effective CT injection rate governing the trade‐off between charge generation and nonradiative energy loss.
Rong Wang +16 more
wiley +1 more source
Molecules, 2001 The Baylis-Hillman reactions of various aryl aldehydes with methyl vinyl ketone at temperatures below -20oC using Lewis acids such as titanium (IV) chloride, boron (III) chloride or zirconium (IV) chloride in the presence of a catalytic amount of ...
Shi-Cong Cui, Jian-Kang Jiang, Min Shi
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A New Method of Halogenation of Aromatic Compounds [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 : A halogenation of eleven aromatic compounds using a new method for iodination of activated aromatic compounds is presented. The reaction of one mole of aromatic compound with a mixture of one mole Potassium iodide and two moles Potassium sulfate in the
Marwan M. Farhan
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Журнал органічної та фармацевтичної хімії, 2023 Aim. To synthesize new fluoro-containing building blocks for medicinal chemistry purposes using electrophilic reactions of 7-(trifluoromethyl)-2,3-dihydro-1H-pyrrolizine. Results and discussion.
Anton A. Klipkov, Igor I. Gerus
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Frontiers in Chemistry, 2022 Herein we report a general preparation of dihaloiodate salts of heterocyclic amines (tertiary and quaternary) with sterically accessible and hindered nitrogen atom.
Griša Grigorij Prinčič +3 more
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Advanced Energy & Sustainability Research, 2022 Fused‐ring acceptors based on an electron‐deficient core, such as Y6, have become a successful strategy in bulk heterojunction (BHJ) organic solar cells (OSCs) for high power conversion efficiencies (PCEs).
Zhe Li +4 more
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Unified Synthesis of Unconventional α‐Polyhalogenated Amines Through Hydroaminoalkylation
Angewandte Chemie International Edition, EarlyView.A unified, redox‐neutral method that transforms alkenes and alkynes into α‐polyhalomethyl amines using stable hemiaminal reagents is reported. This approach enables access to CF3, CF2H, CF2Cl, and CFClH motifs, expanding halogenated amine space with broad substrate scope, functional group tolerance, and applicability to late‐stage modification of drug ...
Angela K. Hofmeister +9 more
wiley +1 more source