Umpolung of Methylenephosphonium Ions in Their Manganese Half-Sandwich Complexes and Application to the Synthesis of Chiral Phosphorus-Containing Ligand Scaffolds

Autor: Guy Lavigne, Noël Lugan, Oleg A. Filippov, Nikolai A. Ustynyuk, Dmitry A. Valyaev

Publikováno v: Angewandte Chemie International Edition
Angewandte Chemie International Edition, Wiley-VCH Verlag, 2015, 127 (21), pp.6413-6417. ⟨10.1002/ange.201501256⟩

International audience; Half-sandwich manganese methylenephosphonium complexes [Cp(CO)2Mn(η2-R2P . C(H)Ph)]BF4 were obtained in high yield through a straightforward reaction sequence involving a classical Fischer-type manganese complex and a seconda

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9176e2f6abaf36375b7e798af509ad99
https://doi.org/10.1002/anie.201501256

Customized Buchwald‐Type Phosphines Bearing an 'Inverted' Pyrimidinium Betaine as an Aryl Group Surrogate – Synthesis and Coordination Chemistry with Gold(I)

Autor: Guy Lavigne, Agnès Labande, Noël Lugan, Ludovik Noël-Duchesneau, Vincent César

Publikováno v: European Journal of Inorganic Chemistry
European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2015, pp.1752-1758. ⟨10.1002/ejic.201403205⟩

International audience; A new ligand scaffold inspired by Buchwald-type phosphines is disclosed. Its design consists of the formal replacement of the distal aryl group of the original archetype by a pyrimidinium betaine connected to the o-phosphinoph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44854569d7eba8c636ded321b3ce7839
https://doi.org/10.1002/ejic.201403205

Buttressing effect as a key design principle towards highly efficient palladium/N-heterocyclic carbene Buchwald–Hartwig amination catalysts

Autor: Guy Lavigne, Noël Lugan, Yin Zhang, Vincent César

Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2017, 23 (55), pp.13792-13801. ⟨10.1002/chem.201702859⟩

International audience; The backbone substitution of the standard 1,3-bis(2,6-diisopropylphenyl)-2H-imidazol-2-ylidene (IPr) ligand by dimethylamino groups was previously shown to induce a dramatic improvement in the catalytic efficiency of the corre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb7d677eb30973aa9041b1f5699459a8
https://hal.archives-ouvertes.fr/hal-01938383

A Direct, Modular, and Efficient Construction of the PCP Structural Motif through Coupling of Manganese Carbyne Complexes with Phosphines

Autor: Stéphanie Bastin, Dmitry A. Valyaev, Guy Lavigne, Kamil I. Utegenov, Nikolai A. Ustynyuk, Noël Lugan

Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2014, 20 (8), pp.2175-2178. ⟨10.1002/chem.201304239⟩

0947-6539; Easily available carbyne complexes of manganese were used as a source of carbyne fragments in an unconventional synthesis of backbone-substituted diphosphinomethanes and cyclic P-ylides upon coupling with secondary or tertiary phosphines,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5797b81a46c7107c49abdbccd8ce0e8d
https://doi.org/10.1002/chem.201304239

Ruthenium Catalysts Supported by Amino-Substituted N-Heterocyclic Carbene Ligands for Olefin Metathesis of Challenging Substrates

Autor: Adam Zieliński, Noël Lugan, Wioletta Kośnik, Mirko Ruamps, Guy Lavigne, Stéphanie Bastin, Vincent César, Karol Grela, Yin Zhang, Adam A. Rajkiewicz

Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2017, 23 (8), pp.1950-1955. ⟨10.1002/chem.201604934⟩

International audience; N-Heterocyclic carbene (NHC) ligands IMes(NMe2) and IMesd(2)(2)((NMe)()) derived from the well-known IMes ligand by substituting the carbenic heterocycle with one and two dimethylamino groups, respectively, were employed for t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::192812bc2abd8fb174acdb02d726a5d8
https://pubmed.ncbi.nlm.nih.gov/27914097