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Dr. Georgi Nikonov
Activation of small molecules on Al(I) and Ga(I) carbenoids: from bond cleavage to coupling reactions
Tuesday, February 28, 2023
Zoom Webinar @ 3:30 p.m.
Host: Dr. Daniel Leznoff
Webinar ID: 886 3080 2983
Passcode : 929346
Activation of small molecules by low-valent main group compounds is a hot topic,1 of which the bond cleavage by carbenoids, electronic analogues of carbene, is the most common.2 The NacNac-supported Al(I) and Ga(I) compounds NacNacM have been in the focus of several groups, including ours. In this talk we shall review the results of the past decade of research3 and highlight the increasing complication of reactivity, progressing from bond activation to multicomponent reactions and coupling.4
- (a) Power, P. P. Nature 2010, 464, 171. (b) Weetman C.; Inoue, S. ChemCatChem 2018, 10, 4213.
- Nikonov, G. I.; Chu, T. Chem. Rev. 2018, 118, 3608.
- Nikonov, G. I. et al. J. Am. Chem. Soc. 2014, 136, 9195; Angew. Chem. Int. Ed. 2016, 55, 13306; Inorg. Chem. 2017, 56, 5993; J. Am. Chem.Soc. 2017, 139, 8804;
- Nikonov, G. I. et al. Angew. Chem. Int. Ed. 2019, 58, 18102; Chem. Eur. J. 2020, 26, 206; Angew. Chem. Int. Ed. 2020, 59, 16281; Chem. Eur. J. 2021, 27, 5730; Chem. Comm., 2022, 58, 6946.
Organometallic chemistry; Transition metal hydrides; Homogeneous catalysis; New ligand environments; Nonclassical bonding. The main aim of our research programme is to develop new efficient metal catalysts for chemo-, regio-, and enantioselective transformation of organic substrates into value-added products.
We investigate new catalytic methods for reduction of challenging substrates, such as nitriles, amides, esters, and heteroaromatics (pyridines, quinolines etc) and try to make these transformations chemoselectively. We also carry out detailed mechanistic studies, trying to understand the action of our catalysts in order to make even better tailor-made systems with predictable properties. Our research touches many synthetic, structural and theoretical aspects of transition metal complexes, including inter alia the design of new ligand environments, NMR spectroscopy, X-ray. and neutron diffraction analyses, and the bond theory.