Molecular defined manganese catalysts for hydrogenation and related reactions
Séminaire Chimie ED459
Prof. Jean-Baptiste
_ Le Jeudi 09 Juin 2022 à 14h
ENSCM, Amphithéâtre Godechot (campus Balard, 240 av. Émile-Jeanbrau)(reprogrammation du séminaire annulé le 13 janvier 2022)
Date de début : 2022-06-09 14:00:00
Date de fin : 2022-06-09 15:30:00
Lieu : ENSCM amphi Godechot (campus Balard, 240 av E. Jeanbrau)
Intervenant : Prof. Jean-Baptiste
LCC Laboratoire de Chimie de Coordination, UPR 8241, CNRS, Toulouse | Université Paul-Sabatier
The development of non-noble metal-based catalytic systems has been increasing since the beginning of the century, notably in the field of reduction or hydroelementation reactions. Tremendous progress has been accomplished with catalysts based on iron and cobalt. In the case of manganese, which is the third most abundant transition metal after iron and titanium, its use as sustainable alternative to precious transition metals in hydrogenation and hydrogen borrowing reactions has achieved an impressive explosion in only few years.[1] Our recent contributions in the field (hydrogenation with H2 or iPrOH, methylation of amines and ketones with methanol) using well-defined manganese complexes will be discussed in details.[2]
Figure 1. Reduction of unsaturated polar bonds and methylation of anilines and ketones with methanol. [see figure in attached PDF abstract]
References
1. a) S. Elangovan, C. Topf, S. Fischer, H. Jiao, A. Spannenberg, W. Baumann, R. Ludwig, K. Junge, M. Beller, J. Am. Chem. Soc. 2016, 138, 8809–8814; b) A. Mukherjee, A. Nerush, G. Leitus, L. J. W. Shimon, Y. Ben David, N. A. Espinosa Jalapa, D. Milstein, J. Am. Chem. Soc. 2016, 138, 4298–4301.
2. a) A. Bruneau-Voisine, D. Wang, V. Dorcet, T. Roisnel, C. Darcel, J.-B. Sortais, Org. Lett. 2017, 19, 3656–3659; b) A. Bruneau-Voisine, D. Wang, V. Dorcet, T. Roisnel, C. Darcel, J.-B. Sortais, J. Catal. 2017, 347, 57–62; c) D. Wei, A. Bruneau-Voisine, D. A. Valyaev, N. Lugan, J.-B. Sortais, Chem. Commun. 2018, 54, 4302–4305; d) R. Buhaibeh, O. A. Filippov, A. Bruneau-Voisine, J. Willot, C. Duhayon, D. A. Valyaev, N. Lugan, Y. Canac, J.-B. Sortais, Angew. Chem. Int. Ed. 2019, 58, 6727–6731.
Contact local ICGM : Dr. Armelle
