Concept

Arene substitution pattern

Related publications (118)

Structure-property relationships based on Hammett constants in cyclometalated iridium(III) complexes: their application to the design of a fluorine-free FIrPic-like emitter

Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Ursula Röthlisberger, Ivano Tavernelli, Basile Curchod, Julien Edouard Frey

While phosphorescent cyclometalated iridium(III) complexes have been widely studied, only correlations between oxidation potential EOX and Hammett constant sigma, and between the redox gap (Delta E-REDOX = E-OX-E-RED) and emission or absorption wavelength ...

2014

Aromatic Homologation by Non- Chelate- Assisted RhIII- Catalyzed C -H Functionalization of Arenes with Alkynes

Nicolai Cramer, Van Manh Pham

Larger condensed arenes are of interest owing to their electro- and photochemical properties. An efficient synthesis is the catalyzed aromatic annulation of a smaller arene with two alkyne molecules. Besides difunctionalized starting materials, directed CH ...

Wiley-V C H Verlag Gmbh2014

Thermal stability of the DSC ruthenium dye C106 in robust electrolytes

Michael Graetzel, Shaik Mohammed Zakeeruddin, Péter Kalman Péchy

We have investigated the thermal stability of the heteroleptic ruthenium complex C106 employed as a sensitizer in dye-sensitized solar cells. The C106 was adsorbed on TiO2 particles and exposed to 2 different iodide/triidode based redox electrolytes A and ...

Pergamon-Elsevier Science Ltd2014

Catalytic Friedel-Crafts Reaction of Aminocyclopropanes

Jérôme Waser, Florian Patrick Marie Daniel De la Barre De Nanteuil, Joachim Loup

A Lewis acid catalyzed Friedel-Crafts reaction between donor-acceptor aminocyclopropanes and indoles and other electron-rich aromatic compounds is reported. Indole alkylation at the C3 position was generally obtained for a broad range of functional groups ...

American Chemical Society2013

Synthesis of Substituted Pyridines from Cascade [1 + 5] Cycloaddition of Isonitriles to

Jieping Zhu

A novel strategy for de novo synthesis of pyridines featuring an unprecedented a-addition of aldehyde and enamide to isonitrile as a key step is described. Under mild conditions, a cascade reaction involving Zn(OTf)(2)-promoted [1 + 5] cycloaddition of iso ...

Amer Chemical Soc2013

Chemoselective hydrogenation of nitroarenes: Boosting nanoparticle efficiency by confinement within highly porous polymeric framework

Lioubov Kiwi, Fernando Cardenas Lizana, Charline Berguerand

We report for the first time 99.9% yield of aminocompounds and high TOFs (up to 61 s(-1)) in the liquid-phase hydrogenation of several para-substituted (-OH, -OCH3, -CH3, -H, -Br, -Cl, -COOH and -NO2) nitroaromatics over quasi-monodispersed (ca. 3.3 nm fro ...

Elsevier2013

Naphthalimide-tagged ruthenium-arene anticancer complexes: combining coordination with intercalation

Paul Joseph Dyson, Catherine Marie Amélie Clavel, Fabio Edafe, Kelly Joan Kilpin

Ruthenium(II) arene compounds have been modified with the naphthalimide group, tethered via the arene ligand, i.e. {dichloroeta(6)-N-(phenylalkyl)(4-dimethylamino)-1,8-naphthalimideruthenium(II)} (alkyl = methyl, ethyl, propyl, pta = 1,3,5-triaza-7- ...

American Chemical Society2012

Anthracene-Tethered Ruthenium(II) Arene Complexes as Tools To Visualize the Cellular Localization of Putative Organometallic Anticancer Compounds

Paul Joseph Dyson, Christian Hartinger, Wee Han Ang, Alexey Nazarov, Olivier Pierre Zava, Michael Groessl, Albert Ruggi, Frédéric Schmitt, Julie Risse

Anthracene derivatives of ruthenium(II) arene compounds with 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (pta) or a sugar phosphite ligand, viz., 3,5,6-bicyclophosphite1,2-O-isopropylidene-alpha-D-glucofuranoside, were prepared in order to evaluate their ...

2012

Development of Catalytic Umpolung

Jonathan Brand

The development of efficient synthetic methodologies is crucial to access complex molecules in an economic, eco-friendly and safe way. The reversal of the intrinsic reactivity of functional groups, called Umpolung, allows alternative synthetic strategies a ...

EPFL2012

Rotational barriers of biphenyls having heavy heteroatoms as ortho-substituents: experimental and theoretical determination of steric effects

The free energies of activation for the aryl-aryl rotation of 17 biphenyl derivatives, bearing a heavy heteroatom (S, Se, Te, P, Si, Sn) as ortho substituent, have been measured by variable temperature NMR. These numbers, so called B values, represent a me ...

2012

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