Results 51 to 60 of about 938,190 (242)

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

Advanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

New library of aminosulfonyl-tagged Hoveyda–Grubbs type complexes: Synthesis, kinetic studies and activity in olefin metathesis transformations

Beilstein Journal of Organic Chemistry, 2010
Seven novel Hoveyda–Grubbs precatalysts bearing an aminosulfonyl function are reported. Kinetic studies indicate an activity enhancement compared to Hoveyda’s precatalyst.
Etienne Borré, Frederic Caijo, Christophe Crévisy, Marc Mauduit   +3 more
doaj   +1 more source

Fast Initiating Furan-Containing Hoveyda-Type Complexes: Synthesis and Applications in Metathesis Reactions

Chemistry, 2022
Two new ruthenium complexes with chelating-ether benzylidene ligands bearing a furan moiety were synthesized and characterized, including X-ray crystallography.
Maryana Nadirova, Adam Zieliński, Maura Malinska, Anna Kajetanowicz   +3 more
doaj   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source

Metátese de olefinas aplicada ao fechamento de anéis: uma ferramenta poderosa para a síntese de macrociclos naturais Ring-closing olefin metathesis: a powerful tool for the synthesis of natural macrocycles

Química Nova, 2008
For a quarter of a century, metathesis has become indispensable for the synthesis of natural and non-natural products, particularly of biologically active compounds.
Anderson Rouge dos Santos, Carlos Roland Kaiser, Jean-Pierre Férézou   +2 more
doaj   +1 more source

Multiple Olefin Metathesis Polymerization That Combines All Three Olefin Metathesis Transformations: Ring-Opening, Ring-Closing, and Cross Metathesis

, 2016
We demonstrated tandem ring-opening/ring-closing metathesis (RO/RCM) polymerization of monomers containing two cyclopentene moieties and postmodification via insertion polymerization.
Tae-Lim Choi (1500892), Ho-Keun Lee (1666681), Andreas Hess (284397), Ki-Taek Bang (1666684), Robert H. Grubbs (1666687)   +4 more
core   +1 more source

Functionalisable cyclopolymers by ring-closing metathesis [PDF]

, 2020
Post‐polymerisation modification of polymers is extremely beneficial in terms of designing brand new synthetic pathways toward functional complex polymers.
Alkattan, Mohammed
core   +1 more source

Bidirectional Disulfide Metathesis Enables Recycling of High‐Performance Thermoset Networks

Advanced Science, EarlyView.
A cyclic aromatic disulfide comonomer enables dual‐mode recyclable pDCPD thermosets through bidirectional disulfide metathesis. The resulting networks combine enhanced mechanical performance with thermal reprocessability and chemical depolymerization into reusable oligomeric fragments, allowing regeneration of high‐performance thermosets with minimal ...
Bohan Li, Jie Zheng, Daniel Paniroi Situmorang, Jia‐xin Neo, Hongzhi Feng, Jinling Li, Loh Xian‐Jun, Zibiao Li, Teck‐Peng Loh   +8 more
wiley   +1 more source

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

Angewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie, Sophia A. Vogler, Gábor Balázs, Francesco Cirigliano, Robert Wolf   +4 more
wiley   +2 more sources

Profluorescent substrates for the screening of olefin metathesis catalysts

Beilstein Journal of Organic Chemistry, 2015
Herein we report on a 96-well plate assay based on the fluorescence resulting from the ring-closing metathesis of two profluorophoric substrates. To demonstrate the validity of the approach, four commercially available ruthenium-metathesis catalysts were
Raphael Reuter, Thomas R. Ward
doaj   +1 more source