Muriel Amatore
Centre national de la recherche scientifique
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Publication
Featured researches published by Muriel Amatore.
Journal of the American Chemical Society | 2015
Brendan J. Fallon; Etienne Derat; Muriel Amatore; Corinne Aubert; Fabrice Chemla; Franck Ferreira; Alejandro Pérez-Luna; Marc Petit
A facile C-H activation and functionalization of aromatic imines is presented using low-valent cobalt catalysts. Using Co(PMe3)4 as catalyst we have developed an efficient and simple protocol for the C-H/hydroarylation of alkynes with an anti selectivity. Deuterium-labeling experiments, DFT calculations coupled with the use of a well-defined catalyst have for the first time shed light on the elusive black box of cobalt catalyzed C-H functionalization.
Journal of the American Chemical Society | 2013
Muriel Amatore; David Lebœuf; Max Malacria; Vincent Gandon; Corinne Aubert
A new asymmetric [2+2+2] cycloaddition of diynes to sulfonimines under rhodium catalysis that provides the corresponding enantioenriched 1,2-dihydropyridines in good yields is described.
Organic Letters | 2016
Brendan J. Fallon; Etienne Derat; Muriel Amatore; Corinne Aubert; Fabrice Chemla; Franck Ferreira; Alejandro Pérez-Luna; Marc Petit
Herein an extremely versatile, well-defined, low-valent cobalt catalyst [Co(PMe3)4] capable of intermolecular and intramolecular imine-directed C2-alkylation and alkenylation of indoles is reported. The reaction proceeds in the absence of reducing agents or additives, affording a range of substituted indoles and dihydropyrroloindoles in high yields and regioselectivities. With the aid of deuterium labeling studies and DFT (Density Functional Theory) calculations, a mechanism is proposed that is based on a Ligand-to-Ligand Hydrogen Transfer pathway.
Organic Letters | 2016
Alejandro Rivera-Hernández; Brendan J. Fallon; Sandrine Ventre; Cédric Simon; Marie-Hélène Tremblay; Geoffrey Gontard; Etienne Derat; Muriel Amatore; Corinne Aubert; Marc Petit
Herein, the use of a well-defined low-valent cobalt(I) catalyst [HCo(PMe3)4] capable of performing the highly regio- and stereoselective hydrosilylation of internal alkynes is reported. The reaction can be applied to a variety of hydrosilanes, symmetrical and unsymmetrical alkynes, giving in many cases a single hydrosilylation isomer. Experimental and theoretical studies suggest the key step to be a hydro-cobaltation and that the reaction proceeds through a classical Chalk-Harrod mechanism.
Chemistry: A European Journal | 2013
Sandrine Ventre; Cédric Simon; Feriel Rekhroukh; Max Malacria; Muriel Amatore; Corinne Aubert; Marc Petit
Go cyclic! The use of [Co(H)(PMe3)4] as a cobalt catalyst allows the previously unattainable catalytic version of the cobalt-mediated cycloaddition of enediynes without the requirement of thermal or light activation (see scheme). The importance of a chelating group on the substrate that can selectively direct the reaction pathway toward the classical polycyclic 1,3-cyclohexadienes or a new family of bicyclic trienes is also demonstrated.
Organic Letters | 2015
Cédric Simon; Muriel Amatore; Corinne Aubert; Marc Petit
A new and efficient synthesis of highly sensitive benzosilacyclobutenes has been developed. For the first time, these compounds can be synthesized in very high yields by a mild, unprecedented intramolecular niobium-catalyzed [2 + 2 + 2] cycloaddition of easily accessible tetrasubstituted sila-triynes. An easy access to highly functionalized benzosilacyclobutenes enlarging the number of potential applications in organic and material chemistry is described.
Organic Letters | 2017
Laura Ferrand; Yue Tang; Corinne Aubert; Louis Fensterbank; Virginie Mouriès-Mansuy; Marc Petit; Muriel Amatore
A convenient, versatile, and easy to handle intramolecular hydrofunctionalization of alkenes (C-O and C-N bonds formation) is reported using a novel niobium-based catalytic system. This atom economic and eco-friendly methodology provides an additional synthetic tool for the straightforward formation of valuable building blocks enabling molecular complexity. Various pyran, furan, pyrrolidine, piperidine, lactone, and lactam derivatives as well as spirocyclic compounds are produced in high yields and selectivities.
New Journal of Chemistry | 2016
Brendan J. Fallon; Vincent Corcé; Muriel Amatore; Corinne Aubert; Fabrice Chemla; Franck Ferreira; Alejandro Pérez-Luna; Marc Petit
Herein, we report the first catalytic version of a cobalt-catalysed reductive homocoupling of benzyl halides which proceeds with low catalyst loadings (0.5 to 5 mol%). By synthetizing each cobalt intermediate we demonstrate that reaction proceeds through two single electron transfers (SET) and that dimethylzinc is only involved in the regeneration of the catalytic species.
Angewandte Chemie | 2008
Muriel Amatore; Corinne Gosmini
European Journal of Organic Chemistry | 2015
Muriel Amatore; Corinne Aubert