Results 171 to 180 of about 922,646 (221)
Chemistry – A European Journal, EarlyView.Levamisole is a common adulterant found in street‐distributed cocaine. Molecular baskets have been shown to form stable inclusion complexes with both substances. While levamisole inserts its benzene into the basket's cavity, cocaine utilizes its bicyclic ring for encapsulation.
Christopher T. Mortensen +7 more
wiley +1 more source
Expanding the Scope of Indium in Frustrated Lewis Pair Chemistry
Chemistry – A European Journal, EarlyView.All good things come in threes: The pyridine‐“protected” FLP tBu2InCH2PtBu2·Py shows three different kinds of reactivity: Besides “typical” FLP activity, it prefers formation of the “soft” isomers for substrates with multiple sites for FLP attack, but reacts with SO2 as a “masked” In/C FLP by insertion into the In─C bond.
Daniel N. Heuer +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Several new chiral cyclic hypervalent iodine(III) reagents have been synthesized and characterized. Carbon‐based ligands were successfully installed onto the hypervalent iodine centers, giving thus access to novel chiral cyano‐, trifluoromethyl‐ or alkynyl‐bearing λ3‐iodanes.
Emmanuel Valzer +4 more
wiley +1 more source
Well‐Defined Nickel Precatalysts: Form, Function, and Application
Chemistry – A European Journal, EarlyView.This review provides guidance on which nickel precatalysts to choose for a given application or which properties to prioritize in reaction development. A summary of the ease of synthesis, stability, diversity, accessibility, modularity, and general applicability is provided along with a related infographic.
Morgan E. John +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.The reactions between tetra(pyridin‐4‐ylthio)tetrathiafulvalene and Br2/I2/ICl/IBr led to a variety of products, including a rare example of neutral 1:4 CT adduct and ionic products showing supramolecular cage motifs at (tri)halide templates. The nature of the reaction products was elucidated based on XRD analysis, Raman spectroscopy and QTAIM, NCI ...
Anna Caria +6 more
wiley +1 more source
Recent advances in the application of ring-closing metathesis for the synthesis of unsaturated nitrogen heterocycles. [PDF]
Synthesis (Stuttg), 2019 Groso EJ, Schindler CS.
europepmc +1 more source
A Stable Isopterin Mimic of a Potent Bacterial Stimulant of T Cells
Chemistry – A European Journal, EarlyView.A microbial metabolite covalently binds immunological protein MR1 to potently activate specific lymphocytes called MAIT cells, but it is too unstable for biological applications. Here, using synthesis, assays, protein crystallography, and computer modelling, we report a water‐stable analogue that activates reporter cells expressing the MAIT T cell ...
Jeffrey Y. W. Mak +9 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Nonafluoromesitylsulfonyl (Nms)‐substituted oxycarbamates are introduced as redox‐lowered radical precursors for green‐light photoredox synthesis. Selective N─O bond cleavage generates amidyl radicals that directly aminate indolizines in DMF, whereas DMSO promotes 1,2‐hydrogen atom transfer (HAT) to α‐amino carbon‐centered radicals and C─C bond ...
Kevin Klaus Stefanoni, René Wilhelm
wiley +1 more source
Iso‐Tellurazole N‐Oxides Assemble Adaptively Folded Macrocyclic Dodecamers
Chemistry – A European Journal, EarlyView.Te…O Chalcogen bonding links twelve molecules into a ring that wraps itself around molecular guests. ABSTRACT Self‐assembled macrocyclic dodecamers were found in the crystals of new pseudo‐polymorphs of iso‐tellurazole N‐oxides. These structures are formed by molecules connected by NTe…O chalcogen bonds and are folded in a pattern that defines 89–153 ...
Jin Z. Wang +4 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen +10 more
wiley +1 more source