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PhD Research scholar Chemistry
SRMIST-KTR
Organic Chemistry, Spectroscopy, Materials Chemistry, Chemistry
Scopus Publications
Scholar Citations
Scholar h-index
Gomathi Sivakumar, Anashwara Babu, Mageshwari Anandhan, Venkatramaiah Nutalapati, and Samarendra Maji
Elsevier BV
Anashwara Babu, Gomathi Sivakumar, Mageshwari Anandan, Prama Adhya, T. Akash, Titash Mondal, Venkatramaiah Nutalapati, and Samarendra Maji
Elsevier BV
Ajithkumar Arumugam, Pushbaraj Palani, Mageshwari Anandan, Venkatramaiah Nutalapati, and Gopal Chandru Senadi
Wiley
AbstractHighly functionalized quinazolin‐4(3H)‐ones were synthesized from reactions of N‐aryl‐2‐aminobenzamides with trialkylamines under photocatalytic conditions by using eosin Y (EY) as a catalyst. The reaction proceeds under mild conditions in aqueous acetonitrile and has a broad substrate scope. Mechanistic studies disclosed the electron‐donor nature of the intermediate 2,3‐dihydroquinazolin‐4(1H)‐one (3’) in the photocatalytic cycle to afford the 2,3‐disubstituted‐quinazolin‐4(3H)‐ones (3). This methodology has been extended to synthesize benzo [4,5] imidazole[1,2‐c] quinazolines and 3 aa on a large scale. Furthermore, the synthesis of potent central nervous system depressant (CNS) drug molecules such as methaqualone (3 la) and mecloqualone (3 pa) was also achieved successfully.
S. Saravanan, Anashwara Babu, Ronald Merckx, Zifu Zhong, Mageshwari Anandan, Venkatramaiah Nutalapati, Bruno G. De Geest, Richard Hoogenboom, Valentin Victor Jerca, and Samarendra Maji
Royal Society of Chemistry (RSC)
Oligo(ethylene glycol) methacrylates functionalized with anthrapyrazolone are reported as fluorescent polymeric thermometers with a broad linear temperature sensing regime.
Pushbaraj Palani, Ajithkumar Arumugam, Mageshwari Anandan, Venkatramaiah Nutalapati, Karthick Govindan, Wei‐Yu Lin, and Gopal Chandru Senadi
Wiley
AbstractHerein, we report the synthesis of methylene‐bridged bis‐1,3‐dicarbonyls from olefins and 1,3‐dicarbonyls using a photoredox/nickel‐catalyzed synergistic approach. Styrene is reported as methylene one‐carbon (C1) synthons in the synthesis of bis‐(β‐dicarbonyls) for the first time. The deuterated study showed the incorporation of styrene‐d3 in the product by NMR and Mass analysis. Fluorescence quenching and cyclic voltammetry (CV) suggest that the reaction proceeds via an energy transfer process (EnT). The key aspects of the protocol are the use of benign photocatalyst fluorescein, peroxide‐free, air as oxidant, broader substrate scope, and 56% to 99% product yields. The synthetic application of the product has been extended to construct tetrasubstituted pyridines in a sequential one‐pot manner, bis‐isoxazole, and bis‐pyrazole.