scholarly journals Bis(imino)acenaphthene (BIAN)-supported palladium(ii) carbene complexes as effective C–C coupling catalysts and solvent effects in organic and aqueous media

2014 ◽  
Vol 4 (5) ◽  
pp. 1456-1464 ◽  
Author(s):  
Katherine A. Crawford ◽  
Alan H. Cowley ◽  
Simon M. Humphrey
Keyword(s):  
Solvent Effects ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Carbene Complexes ◽  
Supported Palladium

Significant solvent effects in the Suzuki–Miyaura coupling reaction are described for the case of two new N-heterocyclic carbene-supported palladium(ii) complexes.

Pyridin- and quinolinylidene nickel carbene complexes as effective catalysts for the Grignard cross-coupling reaction

2007 ◽  
Vol 265 (1-2) ◽  
pp. 50-58 ◽  
Author(s):  
Sabine K. Schneider ◽  
Christoph F. Rentzsch ◽  
Anneke Krüger ◽  
Helgard G. Raubenheimer ◽  
Wolfgang A. Herrmann
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Carbene Complexes ◽  
Cross Coupling Reaction

Palladium-Schiff-base-silica framework as a robust and recyclable catalyst for Suzuki–Miyaura cross-coupling in aqueous media

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38085-38092 ◽  
Author(s):  
Tahshina Begum ◽  
Manoj Mondal ◽  
Pradip K. Gogoi ◽  
Utpal Bora
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Room Temperature ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Recyclable Catalyst ◽  
Cross Coupling Reaction

A novel Pd@imine-SiO2 catalyst was prepared and found to exhibit excellent catalytic activity in a Suzuki-Miyaura cross-coupling reaction under aqueous media at room temperature.

scholarly journals Synthesis and Characterization of a Novel Green Cationic Polyfluorene and Its Potential Use as a Fluorescent Membrane Probe

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 938 ◽  
Author(s):  
Rebeca Vázquez-Guilló ◽  
María Martínez-Tomé ◽  
Zehra Kahveci ◽  
Ivan Torres ◽  
Alberto Falco ◽  
...  
Keyword(s):  
Mammalian Cells ◽  
Membrane Surface ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Model Membranes ◽  
Lipid Phase ◽  
Fluorescent Properties ◽  
Membrane Probe ◽  
Fluorescence Efficiency ◽  
Potential Use

In the present work, we have synthesized a novel green-emitter conjugated polyelectrolyte Copoly-{[9,9-bis(6′-N,N,N-trimethylammonium)hexyl]-2,7-(fluorene)-alt-4,7-(2-(phenyl) benzo[d] [1,2,3] triazole)} bromide (HTMA-PFBT) by microwave-assisted Suzuki coupling reaction. Its fluorescent properties have been studied in aqueous media and in presence of model membranes of different composition, in order to explore its ability to be used as a green fluorescent membrane probe. The polyelectrolyte was bound with high affinity to the membrane surface, where it exhibited high fluorescence efficiency and stability. HTMA-PFBT showed lower affinity to zwitterionic membranes as compared to anionic ones, as well as a more external location, near the membrane-aqueous interface. Fluorescence microscopy studies confirmed the interaction of HTMA-PFBT with the model membranes, labelling the lipid bilayer without perturbing its morphology and showing a clear preference towards anionic systems. In addition, the polyelectrolyte was able to label the membrane of bacteria and living mammalian cells, separately. Finally, we explored if the polyelectrolyte can function also as a sensitive probe able of detecting lipid-phase transitions. All these results suggest the potential use of HTMA-PFBT as a green membrane marker for bioimaging and selective recognition of bacteria cell over mammalian ones and as a tool to monitor changes in physical state of lipid membranes.

Sign in / Sign up

Export Citation Format

Share Document