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Carbenes are a fascinating class of organic molecules with a divalent carbon atom having six electrons in its valence shell. While “Arduengo type” unsaturated carbenes are very popular among chemists, saturated NHCs represent a unique class due to their more nucleophilic character and lower HOMO-LUMO gap than their unsaturated analogs. In this talk, we will present the use of saturated N-heterocyclic carbene (SNHC) in C-F bond activation.1,2 Further, we describe the utilization of SNHCs in designing Thiele’s and ChiChibabin’s hydrocarbon with the lower singlet-triplet gap.3 Finally, the employment of SNHCs as ligands in boron chemistry will be presented.4-8
References
1. M. Pait, G. Kundu, S. Tothadi, S. Karak, S. Jain, K. Vanka, S. S. Sen, Angew. Chem. Int. Ed. 2019, 58, 2804-2808.
2. G. Kundu, V. S. Ajithkumar, M. K. Bisai, S. Tothadi, T. Das, K. Vanka, S. S. Sen, Chem. Commun. 2021, 57, 4428-4431.
3. G. Kundu, S. De, S. Tothadi, A. Das, D. Koley, S. S. Sen, Chem. Eur. J. 2019, 25, 16533-16537.
4. G. Kundu, S. Pahar, S. Tothadi, S. S. Sen, Organometallics 2020, 39, 4696-4703.
5. G. Kundu, S. Tothadi, S. S. Sen, Inorganics 2022, 10, 97 (1-13).
6. G. Kundu, V. S. Ajithkumar, K. V. Raj, K. Vanka, S. Tothadi, S. S. Sen, Chem. Commun. 2022, 58, 3783-3786.
7. G. Kundu, K. Balayan, S. Tothadi, S. S. Sen, Inorg. Chem. 2022 (DOI: 10.1021/acs.inorgchem.2c00611).
8. G. Kundu, R. Dixit, S. Tothadi, K. Vanka, S. S. Sen, Dalton Trans. (Accepted Article).
Short biodata
Dr. Sen received his Ph.D. in 2010 at the University of Göttingen,
Germany. Postdoctoral work followed (2011-2013), working with Prof. Holger Braunschweig at the University of Würzburg, Germany, supported by the AvH Foundation. In 2014, he was appointed as a senior scientist at CSIR-NCL, Pune, where he is currently serving as a Principal Scientist since 2018. Dr. Sen is the recipient of CSIR-Young scientist award in 2017, INSA medal for Young Scientist in 2018, Merck Young Scientist Award, 2019, NCL-RF Scientist of the year in 2020, Swarnajayanti fellowship in 2021, CRSI-Bronze medal 2022. He has been selected as a ChemComm Emerging Investigator 2018, Early Career Advisory Board Member of ACS Catalysis (2019-2021), Young Associate of Indian Academy of Science (2017-2020) and featured in "75 under 50 Scientists Shaping Today’s India" (DST) (2021). |