Showing papers by "Emmanuelle Schulz published in 2015"
TL;DR: In this paper, some of the recent advancements completed in the development of (chiral) metal-free and late-transition metal catalysts for the inter-and intramolecular hydroamination of unactivated alkenes, including allenes, 1,3-dienes, and strained alkens, are discussed.
138 citations
TL;DR: This Perspective article provides an overview of the recent advancements in the field of intra- and inter-molecular C-N, C-O and C-P bond formation by hydroamination, hydroalkoxylation, hydrophosphination,Hydrophosphonylation or hydroph phosphinylation of unactivated alkenes promoted by (chiral) homogeneous catalysts based on earth abundant elements.
Abstract: This Perspective article provides an overview of the recent advancements in the field of intra- and inter-molecular C–N, C–O and C–P bond formation by hydroamination, hydroalkoxylation, hydrophosphination, hydrophosphonylation or hydrophosphinylation of unactivated alkenes, including allenes, 1,3-dienes and strained alkenes, promoted by (chiral) homogeneous catalysts based on earth abundant elements of the s and p blocks, the first row transition metals and the rare-earth metals. The relevant literature from 2009 until late 2014 has been covered.
112 citations
TL;DR: In this paper, the commercially available M71-SIPr ruthenium precatalyst was deposited on silica, with the aim of developing a simple procedure for catalyst recovery in metathesis reactions.
Abstract: The commercially available M71-SIPr ruthenium precatalyst was deposited on silica, with the aim to develop a simple procedure for catalyst recovery in metathesis reactions. Various spectroscopic analyses revealed that the impregnation resulted from hydrogen bonding interactions, specifically with the carbonyl group of the trifluoroacetamide moiety of the complex. These interactions were, furthermore, responsible for catalytic improvement through a facilitated release of the active ruthenium species. The silica-supported complex proved to be an efficient catalyst for the promotion of various olefin metathesis reactions in a multisubstrate procedure. The catalytic material was easily recovered by simple filtration and delivered the targeted products in high yield for seven consecutive runs
10 citations
TL;DR: Calcium catalyzed aza-Piancatelli reactions between substituted 2-furylcarbinols and aniline derivatives are described for the first time.
Abstract: Calcium catalyzed aza-Piancatelli reactions between substituted 2-furylcarbinols and aniline derivatives are described for the first time.
6 citations
TL;DR: A catalyst has been tuned to make different compounds from the same molecules in carbon–nitrogen bond-forming reactions, depending on the conditions used, which are potential building blocks for biologically active molecules.
Abstract: A catalyst has been tuned to make different compounds from the same molecules in carbon–nitrogen bond-forming reactions, depending on the conditions used. The products are potential building blocks for biologically active molecules.
3 citations
1 citations
TL;DR: In this paper, a 1:2 amine/alkene molar ratio was used to achieve a satisfactory isolated yield for 2-vinylpyridine with room temperature.
Abstract: Binaphthylamido alkyl yttrium complexes have been proven to promote the anti-Markovnikov addition between various styrene derivatives and secondary amines efficiently. Although the reaction has to be performed at high temperature, it is realized advantageously with a 1:2 amine/alkene molar ratio to deliver the hydroamination product in a satisfactory isolated yield. Furthermore, the reaction with 2-vinylpyridine proceeds at room temperature within a few minutes with a low catalyst loading of 1 mol %. The procedure has been extended to a tandem intermolecular anti-Markovnikov–intramolecular Markovnikov hydroamination for which the chiral precatalyst delivered the targeted product in up to 85 % yield and 48 % enantiomeric excess.
TL;DR: In this paper, a catalyst has been tuned to make different compounds from the same molecules in carbon-nitrogen bond-forming reactions, depending on the conditions used, and the products are potential building blocks for biologically active molecules.
Abstract: A catalyst has been tuned to make different compounds from the same molecules in carbon–nitrogen bond-forming reactions, depending on the conditions used. The products are potential building blocks for biologically active molecules.