Results 81 to 90 of about 61,363 (222)

Diverse reactivity of maleimides in polymer science and beyond

Polymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source

Catalytic Carbonyl-Olefin Metathesis of Aliphatic Ketones: Iron(III) HomoDimers as Lewis Acidic Superelectrophiles [PDF]

, 2018
Catalytic carbonyl-olefin metathesis reactions have recently been developed as a powerful tool for carbon-carbon bondformation. However, currently available synthetic protocols rely exclusively on aryl ketone substrates while the corresponding aliphatic ...
Paul M., Zimmerman, Haley, Albright, Jolene P., Reid, Christopher C., McAtee, Lindsey A., Karp, Matthew S., Sigman, Corinna S., Schindler, Jacob R., Ludwig, Paul S., Riehl   +8 more
core   +1 more source

Synergistic Silylium‐Ion and Palladium Catalysis Enables Migratory Alkene Silylation With Allylsilanes by Formal C–H/C–Si Metathesis

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
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, Zheng‐Wang Qu, Stefan Grimme, Elisabeth Irran, Hendrik F. T. Klare, Martin Oestreich   +5 more
wiley   +2 more sources

(2E,2′E)-3-(4-{[4-(4-Hydroxy-3-methoxyphenyl)but-2-en-1-yl]oxy}phenyl)-1-(2-hydroxy-4-methoxyphenyl)prop-2-en-1-one

Molbank, 2016
A hybrid of eugenol and a chalcone has been synthesized in good yield via cross olefin metathesis. The title compound (3) was characterized by spectroscopic data including NMR, infrared, and ESI-MS.
Muhamad S. Fareza, Didin Mujahidin, Yana M. Syah   +2 more
doaj   +1 more source

The Influence of Various N-Heterocyclic Carbene Ligands on Activity of Nitro-Activated Olefin Metathesis Catalysts

Molecules, 2020
A set of nitro-activated ruthenium-based Hoveyda-Grubbs type olefin metathesis catalysts bearing sterically modified N-hetero-cyclic carbene (NHC) ligands have been obtained, characterised and studied in a set of model metathesis reactions.
Michał Pieczykolan, Justyna Czaban-Jóźwiak, Maura Malinska, Krzysztof Woźniak, Reto Dorta, Anna Rybicka, Anna Kajetanowicz, Karol Grela   +7 more
doaj   +1 more source

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

Polymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler, Steffen M Weidner, Tillmann Klamroth, Axel HE Müller, Helmut Schlaad   +4 more
wiley   +1 more source

1,3‐Brook Rearrangement of α‐Silyl Allylic Alcohols: Copper‐Catalyzed Enantiospecific Formation of Allenes and Copper‐Mediated ipso‐Substitution Reactions Affording Trisubstituted Alkenes

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
A regioselective ruthenium catalyzed trans‐hydrosilylation of propargyl alcohols followed by a 1,3‐Brook rearrangement opens access to reactive organocopper intermediates, which evolve upon warming into allenes with strict chirality transfer to the emerging axis; alternatively, these reactive species can be trapped with a large variety of electrophiles
Jack L. Sutro, Felix Anderl, Paul Haf‐Moths, Alois Fürstner   +3 more
wiley   +2 more sources

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

The Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider, Laura D. de Avila, Mauricio C. D. F. Xavier, Alex F. C. Flores, Liane K. Soares, Gabriel P. da Costa, Angelita M. Barcellos   +6 more
wiley   +1 more source

Synthesis and Pd(II) Complexes of an Unsymmetric and Flexible Ferrocene Bisphosphine

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Insertion of flexible spacers into the pivotal C(ferrocene)P bonds in dppf increases flexibility of the resulting homologated ligands and lowers their tendency to coordinate as P,P′‐chelating ligands. To expand the family of flexible homologated analogs of 1,1′‐bis(diphenylphosphino)ferrocene, the unsymmetric bisphosphine 1‐(diphenylphosphino)‐1′‐[2 ...
Jakub Antala, Matěj Vlček, Ivana Císařová, Petr Štěpnička   +3 more
wiley   +1 more source

Ring‐Retentive Allylation of Cyclopropanols Through Interception of Enolized Homoenolates by π‐Allylpalladium

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Cyclopropanols undergo palladium‐catalyzed, zinc‐mediated allylation with allyl acetates: the ring opens transiently to an enolized homoenolate, is intercepted by π‐allylpalladium, and recloses to furnish β‐allylated cyclopropanols. This formal “allylic cyclopropylation” broadens the reaction space for ring‐retentive functionalization of cyclopropanols.
Kento Tsukiji, Sena Miura, Naohiko Yoshikai   +2 more
wiley   +2 more sources