Showing papers by "Emmanuelle Schulz published in 2006"
TL;DR: Ytterbium and lutetium ionic complexes derived from enantiopure substituted (R)-binaphthylamine ligands have been investigated for the hydroamination/cyclization of several aminopentenes and an aminohexene.
Abstract: Ytterbium and lutetium ionic complexes derived from enantiopure substituted (R)-binaphthylamine ligands, of the general formula [Li(THF)n][Ln[(R)-C20H12(NR)2]2], have been investigated for the hydroamination/cyclization of several aminopentenes and an aminohexene. Complexes with isopropyl or cyclohexyl substituents on nitrogen atoms were found to be efficient catalysts under mild conditions for the formation of N-containing heterocycles with enantiomeric excesses up to 78%.
145 citations
TL;DR: In this article, a chiral thiophene-containing salen ligand was synthesized and the corresponding metal complexes were prepared and electropolymerized at a platinum electrode by cyclic voltammetry.
30 citations
TL;DR: A new concept for recycling asymmetric bis(oxazoline)-type catalysts is reported and the formation of charge-transfer complexes between the chiral ligand and trinitrofluorenone and their subsequent precipitation and reuse by addition of new substrate solutions is described.
30 citations
TL;DR: The first edition of ESYOP as discussed by the authors was devoted to the future of organic chemistry, and the collective answer presented has been elaborated following a 4-step process: stimulating plenary lectures given by outstanding chemists and philosophers, short presentations given by each participant, think-tank sessions and writing of the final report after the symposium.
Abstract: What will organic chemistry do in the next forty years? This Perspective lists six tasks that have emerged during the first edition of ESYOP, a symposium devoted to the future of organic chemistry. The collective answer presented has been elaborated following a 4-step process: stimulating plenary lectures given by outstanding chemists and philosophers, short presentations given by each participant (average age: 34 years old), think-tank sessions and writing of the final report after the symposium.
9 citations
01 Jan 2006
2 citations
University of Orléans1, Université Paul Cézanne Aix-Marseille III2, University of Bordeaux3, University of Lyon4, University of Reims Champagne-Ardenne5, Aix-Marseille University6, University of Poitiers7, Centre national de la recherche scientifique8, L'Oréal9, Queen's University10, McGill University11, University of Milan12, University of Nantes13, Joseph Fourier University14, University of Paris-Sud15, Organon International16
TL;DR: The first edition of ESYOP, a symposium devoted to the future of organic chemistry, was held in 2013 as mentioned in this paper, where the challenges reported may be structured in three interdependent themes: quest for simplicity, nature as a guide, design of molecular structures capable of autonomy and adaptability.
2 citations
TL;DR: In this article, a new family of lanthanide ionic complexes derived from chiral, substituted (R)-binaphthylamine ligands, [Li(thf)4][Ln{(R)-C20H12(NR)2}2] (Ln=Yb, Sm, Nd, or Lu), has been synthesized and characterized by X-ray crystal structure analyses.
Abstract: A new family of lanthanide ionic complexes derived from chiral, substituted (R)-binaphthylamine ligands, [Li(thf)4][Ln{(R)-C20H12(NR)2}2] (Ln=Yb, Sm, Nd, or Lu), has been synthesized and characterized by X-ray crystal structure analyses. All complexes have been tested as new catalysts for the hydroamination/cyclization of 1-(aminomethyl)-1-allylcyclohexane. Ytterbium complexes proved to be both the most active and the most enantioselective, and the use of the complex [Li(thf)4][Yb{(R)-C20H12(NC3H7)2}2], bearing isopropyl radicals on the nitrogen atoms, allowed the formation of the corresponding spiropyrrolidine in high yield with up to 70 % ee.
1 citations
1 citations