Results 181 to 190 of about 513,204 (270)

Syntheses and Properties of Pentafluoroethylplumbanes in the Oxidation States +II, +III, and +IV

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
Syntheses of pentafluoroethyl substituted plumbanes in the formal oxidation states +II, +III, and +IV are reported. The compounds were characterized by multinuclear NMR spectroscopy, including 207Pb NMR spectroscopy, mass spectrometry and single‐crystal x‐ray diffraction experiments. ABSTRACT Mono‐, bis‐, and tris(pentafluoroethyl)plumbanes of the type
Michael Grasse, Lukas Hartmann, Beate Neumann, Hans‐Georg Stammler, Berthold Hoge   +4 more
wiley   +1 more source

Silica‐Supported Mononuclear Methyl‐Platinum Complexes Stabilized by Trimethylphosphine—Synthesis, Structure, and Reactions Under Reducing Conditions

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
The article describes the synthesis and molecular transformations of a silica‐supported bis(phosphine)methylplatinum(II) complex under reactive (H2, CO) and inert gas atmospheres. The focus lies on the stabilizing effect of the sterically non‐demanding trimethylphosphine ligand, which alters the reactivity of the surface sites, compared to other ...
Lea S. Kopietz, Sven Schaefer, Oksana Storcheva, Gabriele Raudaschl‐Sieber, Johannes Bitzer, Wolfgang Kleist, Klaus Köhler   +6 more
wiley   +1 more source

Intramolecular Nickel‐Catalyzed Reductive Coupling: Enantioselective Synthesis of Tetrahydroisoquinolines and Related Heterocycles

Angewandte Chemie, Volume 138, Issue 43, 19 October 2026.
The successful extension of the nickel‐catalyzed asymmetric coupling of polarized 1,3‐dienes with aldehydes to an intramolecular setting opens an efficient new entry into hydroxylated N‐heterocyclic compounds, most notably valuable tetrahydroisoquinolines.
Thilo Bender, Markus Leutzsch, Yannik Sell, Alois Fürstner   +3 more
wiley   +2 more sources

Counterion Effects in Decatungstate Photocatalysis

European Journal of Organic Chemistry, Volume 29, Issue 39, 22 October 2026.
Decatungstate photocatalysis is often discussed from an anion‐centered perspective, treating the counterion as a passive charge‐balancing species. This review highlights that counterion identity can instead profoundly influence catalyst solubility, ion pairing, aggregation, stability, substrate accessibility, and catalytic performance.
Florence Babawale, Burkhard König, Indrajit Ghosh   +2 more
wiley   +1 more source

Large ³¹P-NMR enhancements in liquid state dynamic nuclear polarization through radical/target molecule non-covalent interaction.

Phys Chem Chem Phys, 2022
Reinhard M, Levien M, Bennati M, Orlando T.   +3 more
europepmc   +1 more source

31P NMR study of neomycin toxicity.

Proceedings of the Japan Academy, Series B, 1980
HAYASHI, Fumio, INOUE, Hiroko, AMAKAWA, Taisaku, YOSHIOKA, Tohru   +3 more
openaire   +2 more sources

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

Journal of Applied Polymer Science, Volume 143, Issue 40, October 20, 2026.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar, François Brouillette, Zahahe Oulame Mouandhoime, Saïd Elkoun, Mathieu Robert   +4 more
wiley   +1 more source

Direct Quantitation of Psilocybin and Psilocin by ¹H and ³¹P qNMR in Wild <i>Psilocybe</i> from Greece. [PDF]

ACS Omega
Dadiotis E, Antonopoulos RK, Cheilari A, Kortsinoglou AM, Melliou E, Mitsis V, Ioannidis K, Thankappan B, Delgoda R, Gonou-Zagou Z, Magiatis P.   +10 more
europepmc   +1 more source

Transformative Chemie maskierter Ortho‐Chinone: Über die direkte Aktivierung von Guajacol zu Lignin‐basierten Klebstoffen

Angewandte Chemie, Volume 138, Issue 43, 19 October 2026.
Erneuerbare Guajacole werden durch Phenyliodid(III)diacetat rasch zu maskierten ortho‐Chinonen oxidiert und bilden eine neue Monomerklasse, die mit Multithiolen selektive Michael‐Typ‐Polyadditionen zu Polymeren mit Thiol‐Guajacol‐Verknüpfungen eingeht.
Dominik P. Hoch, Keven Walter, Oliver Sipura, Jana Falkenhagen, Xinyang Peng, Leon Gerndt, Hamy Nguyen, Hans G. Börner   +7 more
wiley   +1 more source

Transformative Masked Ortho‐Quinone Chemistry: From Direct Guaiacol Activation to Lignin‐Based Adhesives

Angewandte Chemie International Edition, Volume 65, Issue 43, 19 October 2026.
Renewable guaiacols are rapidly oxidized by phenyliodine(III)diacetate to masked ortho‐quinones, giving a new class of monomers that undergo selective Michael‐type polyaddition with multithiols to from thiol‐guaiacol connectivity‐bearing polymers. The activation applies to discrete monomers and directly to lignin, enabling two‐component adhesives that ...
Dominik P. Hoch, Keven Walter, Oliver Sipura, Jana Falkenhagen, Xinyang Peng, Leon Gerndt, Hamy Nguyen, Hans G. Börner   +7 more
wiley   +1 more source