Concept

Hydrogénation par transfert

Publications associées (222)

Specific substrates for O6- alkylguanine-DNA alkyltransferase

The invention relates to substrates for O-alkylguanine-DNA alkyltransferases (AGT) of formula R1-A-X-CH2-R3-R4-L1, wherein A is a group recognized by AGT as a substrate, X is oxygen or sulfur, R1 is a group -R2-L2 or a group R5, R2 and R4 are, independe ...

2006

Searching for molecular arene hydrogenation catalysis in ionic liquids

Paul Joseph Dyson

Arene hydrogenation by homogeneous catalysts is a highly controversial area of research, with many of the mononuclear complexes shown to catalyse the reaction, being found to be pre-catalysts to nanoparticles, on closer examination. The solvent properties ...

2005

Process for the preparation of 2-butene-1.4-diol

Albert Renken, Lioubov Kiwi, Eric Joannet

NOVELTY - A 2-butene-1,4-diol is prepared by hydrogenating 2-butyne-1,4-diol in the presence of a structured catalyst and in the absence of a solvent. USE - For preparing 2-butene-2,4-diol that is an important industrial intermediate in the preparation of ...

2005

Ruthenium-benzocrownether complexes: Synthesis, structures, catalysis and immobilisation in ionic liquids

Paul Joseph Dyson

A facile pathway to [RuCl2(η6-benzocrownether)]2 complexes is described and crystal structures of the complexes [RuCl2(η6-benzo-15-crown-5)]2 and [RuCl2(η6- ...

2005

Hydrogenation reactions in ionic liquids: Finding solutions for tomorrow's world

Paul Joseph Dyson, Dongbin Zhao

Ionic liquids are excellent solvents for conducting biphasic hydrogenation reactions offering many advantages over both related homogeneous processes and biphasic reactions in other alternative solvents. The relevant physicochemical properties of ionic liq ...

2005

Supramolecular triruthenium cluster-based benzene hydrogenation catalysis: Fact or fiction?

Gabor Laurenczy

The question is addressed of whether the triruthenium cluster cation Ru-3(mu(2)-H)(3)(eta(6)C(6)H(6))(eta(6)-C6Me6)(2)(mu(3)-O), 1, is a supramolecular, outer-sphere benzene hydrogenation catalyst or is 1 a precatalyst to well-known Ru(0)(n) catalysis ...

2005

Solvent-Free Selective Hydrogenation of 2-Butyne-1,4-diol over Structured Palladium Catalyst

Albert Renken, Lioubov Kiwi, Eric Joannet

Hydrogenation of 2-butyne-1,4-diol catalyzed by Pd nanoparticles on activated carbon fibers (ACFs) was studied. The ACF support in the form of woven fabrics provides the basis for structured catalytic fixed beds. In the present study, this catalyst was int ...

American Chemical Society2005

Heterobimetallic complexes as catalyst precursors for the Oppenauer-type oxidation of alcohols

Kay Severin, Sébastien Gauthier

A heterobimetallic Ru(II)-Rh(I) complex has been identified as a potent catalyst precursor for the Oppenauer-type oxidation of alcohols. With 0.1-0.5 mol% of this complex and K2CO3 as the co-catalyst, it is possible to oxidize secondary and primary alcohol ...

2005

Band structure and quantum conductance of nanostructures from maximally localized wannier functions: The case of functionalized carbon nanotubes

Nicola Marzari

We have combined large-scale, Gamma-point electronic-structure calculations with the maximally localized Wannier functions approach to calculate efficiently the band structure and the quantum conductance of complex systems containing thousands of atoms whi ...

2005

Mechanistic investigations on the hydrogenation of alkenes using ruthenium(II)-arene diphosphine complexes

Paul Joseph Dyson, Corinne Daguenet

The ruthenium(II) complexes [Ru(eta(2)-P-P)(eta(6)-p-cymene)Cl]Cl, P-P = diphenylphosphinomethane (dppm), diphenylphosphinoethane (dppe), or diphenylphosphinopropane (dppp), and the highly water-soluble analogues, [Ru(eta(2)-P-P)(eta(6) -arene)Cl]Na-3, P-P ...

2004

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