Dr. Kamal Krishna Rajbongshi
Associate Professor
Ph.D. : Gauhati UniversityResearch Interests:
Synthetic Organic Chemistry. Development of methodologies for common organic reactions, Electrochemical Synthesis, and Photo-Chemical Synthesis.Date of Joining : Sep 30, 2023
Phone: 9864795598
Email: kamalk.rajbongshi@cottonuniversity.ac.in
About
Kamal Krishna Rajbongshi was born in Guwahati, Assam, India in 1982. He obtained his M.Sc. (Organic Chemistry) degree in 2006 from Gauhati University, Assam. He achieved his Ph.D. degree (under the supervision of Prof Prodeep Phukan) in 2016 from Gauhati University, Assam, India. He carried out his postdoctoral studies at the University of KwaZulu-Natal, Durban, South Africa with Prof. Tricia Naicker from March 2018 to March 2020. He was in the Department of Chemistry, Handique Girls’ College, Guwahati, Assam, as an Assistant Professor from the year 2009-2023. His current research interest includes organic synthesis, radical chemistry, and electrochemical synthesis.
Research paper publications
2024
1. Chakraborty, N.; Das, B.; Barik, D.; Rajbongshi, K. K.; Patel, B. K., Base-Promoted Synthesis of S-Arylisothiazolones via Intramolecular Dehydrative Cyclization of α-Keto-N-acylsulfoximines, J. Org. Chem , vol. 89, 778–783, 1, 0022-3263, 2024 https://doi.org/10.1021/acs.joc.3c02269
2. Chakraborty, N.; Rajbongshi, K. K.; Gondaliya, A.; Patel, B. K., PIDA/I2-mediated photo-induced aerobic N-acylation of sulfoximines with methylarenes, Org. Biomol. Chem. , vol. 22, 2375-2379, 12, 1477-0539, 2024 DOI https://doi.org/10.1039/D4OB00175C
3. Rahman, P.; Chakraborty, N.; Patel, B. K.; Rajbongshi, K. K.,, Iodine-Promoted Sulfoximidation of Cinnamic Acids via Oxidative C═C Bond Cleavage., J. Org. Chem. , vol. 89 , 10472–10484, 15, 0022-3263, 2024 https://doi.org/10.1021/acs.joc.4c00585
2023
1. Thota, N.; Makam, P.; Rajbongshi, K. K.; Nagiah, S.; Abdul, N. S.; Chuturgoon, A.; Kaushik, A.; Lamichhane, G.; Somboro, A. M.; Kruger, H. G.; Govender, T.; Taicker, T.; Arvidsson, P. I., Neutralizing Carbapenem Resistance by Co-Administering Meropenem with Novel β-Lactam-Metallo-β-Lactamase Inhibitors, Antibiotics , vol. 12, 633, 4, 2079-6382, 2023 https://doi.org/10.3390/antibiotics12040633
2. Ambala, S.; Govender, K. B.; Rajbongshi, K. K.; Govender, T.; Kruger, H. G.; Naicker, T.; Arvidsson, P. I. , N-Arylation of primary and tertiary sulfonimidamides (SIAs) with benzyne precursors under transition metal-free conditions. , Tetrahedron Lett. , vol. 124, 154583, 0040-4039, 2023 https://doi.org/10.1016/j.tetlet.2023.154583
3. Das, B.; Chakraborty, N.; Rajbongshi, K. K.; Patel, B. K. , Synthetic utility of styrenes in the construction of diverse heterocycles via annulation/cycloaddition., Tetrahedron , vol. 134, 133270, 2023 https://doi.org/10.1016/j.tet.2023.133270
4. Chakraborty, N.; Rajbongshi, K. K.; Dahiya, A.; Das, B.; Vaishnani, A.; Patel, B. K. , NIS-initiated photo-induced oxidative decarboxylative sulfoximidation of cinnamic acids, Chem. Commun. , vol. 59, 2779-2782, 19, 1359-7345, 2023 DOI https://doi.org/10.1039/D3CC00142C
2022
1. Chakraborty, N.; Das, B.; Rajbongshi, K. K.; Patel, B. K. , Combined Power of Organo- and Transition Metal Catalysis in Organic Synthesis., Eur. J. Org. Chem. , vol. 2022, e202200273, 20, 1099-0690, 2022 https://doi.org/10.1002/ejoc.202200273
2020
1. Rajbongshi, K, K.; Ambala, S.; Govender, T.; Kruger, H.G, Arvidsson, P.I, Naicker, T., Microwave-Accelerated N-Acylation of Sulfoximines with Aldehydes under Catalyst-Free Conditions., Synthesis, vol. 52, 1279-1286, 08, 0039-7881, 2020 DOI: 10.1055/s-0039-1691589
2019
1. Thota, N.; Makam, P.; Rajbongshi, K. K.; Nagiah, S.; Abdul, N. S.; Chuturgoon, A.; Kaushik, A.; Lamichhane, G.; Somboro, A. M.; Kruger, H. G.; Govender, T.; Taicker, T.; Arvidsson, P. I. , N-Trifluoromethylthiolated Sulfonimidamides and Sulfoximines: Anti-microbial, Anti- mycobacterial, and Cytotoxic Activity. , ACS Med. Chem. Lett, vol. 10, 1457–1461, 10, 1948-5875, 2019 https://doi.org/10.1021/acsmedchemlett.9b00285
2018
1. Khumalo, M. F.; Akpan, E. D.; Chinthakindi, P. K.; Brasil, Edikarlos M.; Rajbongshi, K. K.; Makatini, M. M.; Govender, T.; Kruger, H. G.; Naicker, T.; Arvidsson, P. I. , Synthesis of novel 1,2,4-thiadiazinane 1,1-dioxides via three component SuFEx type reaction., RSC Adv 2018, vol. 8, 37503-37507, 2046-2069, 2018 DOI https://doi.org/10.1039/C8RA07627H
2017
1. Dutta, M. M.; Rajbongshi, K. K.; Phukan, P. , CoFe2O4-SiO2-SO3H nano composite as a magnetically recoverable catalyst for oxidative bromination of alkynes. , Synth. Commun. , vol. 47, 2330-2341 , 24, 0039-7911, 2017 https://doi.org/10.1080/00397911.2017.1376333
2016
1. Rajbongshi, K. K.; Borah, A. J.; Phukan, P. , N,N-Dibromo-p-toluenesulfonamide (TsNBr2): A promising alternative bromo-organic compound , Synlett, vol. 27, 1618-1634, 11, 0936-5214, 2016 DOI: 10.1055/s-0035-1562024
2. Rajbongshi, K. K.; Hazarika, D.; Phukan, P. , TsNBr2 mediated oxidative functionalization of alkynes, Tetrahedron, vol. 72, 4151-4158, 29, 0040-4020, 2016 https://doi.org/10.1016/j.tet.2016.05.017
3. Rajbongshi, K. K.; Saikia, I.; Chanu, L. D.; Roy, S.; Phukan, P. , A metal free protocol for aminofunctionalization of olefins using TsNBr2, J. Org. Chem , vol. 81, 5423–5432, 13, 0022-3263, 2016 https://doi.org/10.1021/acs.joc.6b00785
2015
1. Rajbongshi, K. K.; Hazarika, D.; Phukan, P. , Metal-free protocol for the synthesis of α-bromo ketones from olefins using TsNBr2, Tetrahedron Lett. , vol. 56, 356-358, 2, 0040-4039, 2015 https://doi.org/10.1016/j.tetlet.2014.11.096
2. Sarma, M. J.; Borah, A. J.; Rajbongshi, K. K.; Phukan, P. , Formation of new C–O and C–N bonds via base promoted Csp2–Csp3 bond cleavage of α-nitro ketone, Tetrahedron Lett. , vol. 56, 7008-7011, 50, 0040-4039, 2015 https://doi.org/10.1016/j.tetlet.2015.11.002
2014
1. Rajbongshi, K. K.; Phukan, P., Facile generation of α,α-dibromodimethyl ketals from alkynes using TsNBr2, Tetrahedron Lett., vol. 55, 1877-1878, 11, 0040-4039, 2014 https://doi.org/10.1016/j.tetlet.2014.01.123
2. Rajbongshi, K. K.; Sarma, M. J.; Phukan, P. , A catalyst-free protocol for direct oxidative esterification of alcohols and aldehydes, Tetrahedron Lett. , vol. 55, 5358-5360, 39, 0040-4039, 2014 https://doi.org/10.1016/j.tetlet.2014.07.124
2012
1. Saikia, I.; Rajbongshi, K. K.; Phukan, P., A simple and efficient bromoformyloxylation and bromoacetoxylation reaction using TsNBr2, Tetrahedron Lett, vol. 53, 758-761, 7, 0040-4039, 2012 https://doi.org/10.1016/j.tetlet.2011.11.138