Dr. Arunava Sengupta

Scopus Publications

Site selective Heck arylation of N-vinyl-7-azaindole engineered by N-oxide activation: scope and mechanistic studies
Susanta Patra, Arunava Sengupta, Parthasarathi Das
Organic Chemistry Frontiers, 2025
External ligand-free Pd-catalyzed arylation achieving an exclusive switch in regioselectivity from α- to β position of N-vinyl-7-azaindoles via an N-oxide activation strategy.
Cascade C─H-Alkenylation-Intramolecular Aminative Cyclization of Benzylsulfonamides for Synthesis of Isoindoline Cores
Arup Bairagi, Arunava Sengupta, Sohel Ali, Aditya Paul, Somnath Yadav
Asian Journal of Organic Chemistry, 2025
Several isoindoline‐core‐bearing compounds are pharmaceutically relevant due to their activity against a myriad of diseases. Traditionally, the isoindoline core is synthesized from benzylamines by two‐step synthesis involving ortho‐C─H alkenylation followed by acid‐ or metal‐catalyzed cyclization. In this study, we execute a direct synthesis of the isoindoline core by a one‐step procedure involving the ortho‐C─H alkenylation‐oxidative followed by intramolecular aminative cyclization of pyridinesulfonamide derivatives of benzylamines with different acrylates and vinyl sulfones using Pd(II)‐salt as catalyst, Ag(I)‐salt as additive, and Cu(II)‐salt as oxidant. The reactions are tolerant of several functional groups on the benzylamine as well as different alkyl groups on the acrylates, providing the isoindoline products with moderate to excellent yields. Control experiments and computational studies revealed the importance of the pyridine‐3‐sulfonamide for the reaction since it provides a key intramolecular site for stabilizing an intermediate species which favors the C─H activation and oxidative amination‐based cyclization process.
Asymmetric Ring-Opening Transformation of Racemic Aziridines: Enantioselective Route to Benzodiazepines
Amit K. Sharma, Satysen Yadav, Arunava Sengupta, Noimur Rahman, Manas K. Ghorai
Journal of Organic Chemistry, 2025
We report an example of dynamic kinetic resolution (DKR) in general and dynamic kinetic asymmetric transformation (DyKAT) in particular in the ring-opening transformation of racemic 2-aryl-N-tosylaziridines employing a strategically designed N-nucleophile and Cu(I)-(S)-BINAP as the chiral Lewis acid catalyst, furnishing the desired ring-opening products with excellent yield (up to 98%) and excellent enantioselectivity (up to 99% ee). The ring-opening products on intramolecular cyclization using AgNO3/DBU produced various 1,4-benzodiazepine derivatives in excellent yields (up to 88%) and enantioselectivity (up to 97% ee).
Four-Component Selenoazaindolylation-Alkoxylation of Styrenes for the Synthesis of Azaindolyl β-Alkoxyalkyl Selenoethers
Rajib Bera, Arup Bairagi, Arunava Sengupta, Sachchida N. Pandey, Rintu Sk, Somnath Yadav
Organic Letters, 2025
Due to the medicinal importance of selenoether and azaindole cores, the design and execution of efficient routes to new compounds bearing these groups placed in juxtaposition with each other are important. Again, multicomponent reactions provide fast and efficient access to the compounds of interest. Herein, we present a one-step route to azaindolyl β-alkoxyalkyl selenoethers or azaindolyl β-hydroxyalkyl selenoethers via the one-step reaction of azaindoles, styrenes, a selenium source, and an alcohol or water using a Ce(IV) oxidant.
Revealing the importance of the C(1) position to modulate the photophysics and Z-scan responses of o-locked GFP chromophores
Debasish Paul, Priyadarshi Sahoo, Amit Kumar Pradhan, Prasanta Kumar Datta, Arunava Sengupta, Umakanta Tripathy, Soumit Chatterjee
Journal of Chemical Physics, 2025
Three novel ortho-locked (o-locked) green fluorescent protein (GFP) chromophores, which are also doubly locked, with a phenyl group at the C(1) of the imidazolinone ring and substituents with varying electronic effects at the C(9) of the benzylidene moiety, have been synthesized. All the chromophores show relatively weak but much red-shifted emissions compared to their methyl counterparts at C(1), as previously reported by us [D. Paul et al., J. Phys. Chem. B 129, 692–711 (2025)]. Quantum chemical calculations indicate that the excited state dynamics of the chromophores possess initial rotation of the phenyl, followed by proton transfer and geometry twisting. Fluorescence decays confirm an early time charge transfer from the benzylidene moiety to the electron-withdrawing substituents at C(9). The relaxation processes occur within a time range of hundreds of femtoseconds to a few picoseconds, subject to respective compounds. This study supports our earlier reported findings [D. Paul et al., J. Phys. Chem. B 129, 692–711 (2025)] that the electronic effect at C(9) significantly affects the quantum yields of o-locked GFP chromophore analogs. This study also shows that solvent viscosity and temperature play dominant roles in modulating the fluorescence intensities of o-locked GFP chromophores. Furthermore, these compounds display significantly superior nonlinear optical (NLO) properties than their methyl analogs [D. Paul et al., J. Phys. Chem. B 129, 692–711 (2025)]. These findings provide valuable insight regarding the correlation between the molecular structures of o-locked GFP chromophores and their spectroscopic nature and pave the way to structurally engineering improved fluorophores. In a nutshell, these chromophores with a phenyl group at C(1), with poor but highly red-shifted emission in solution, showing viscosity dependency on emission intensity, and high NLO properties, can be very useful in bio-imaging.
CuF2/DTBP-Catalyzed Chan-Lam Coupling of Oxazolidinones with Arylboronic Acid Pinacol Ester: Scope and Application
Tanumay Roy, Krishanu Mondal, Pallabi Halder, Arunava Sengupta, Parthasarathi Das
Journal of Organic Chemistry, 2025
A new combination of CuF2/DTBP-catalyzed N-arylation of oxazolidinones, amides, amines, and azoles has been explored with arylboronic acid pinacol esters (arylBpin). This methodology has also been applied to the synthesis of oxazolidinone-based marketed drugs, including Rivaroxaban, Linezolid, Sutezolid, and Toloxatone. Mechanistic investigations using various spectroscopic techniques and DFT studies revealed the role of DTBP/MeOH in the catalytic process.
Revealing the Role of Electronic Effect to Modulate the Photophysics and Z-Scan Responses of o-Locked GFP Chromophores
Debasish Paul, Priyadarshi Sahoo, Arunava Sengupta, Umakanta Tripathy, Soumit Chatterjee
Journal of Physical Chemistry B, 2025
Three novel core green fluorescent protein (GFP) chromophore analogues, based on a doubly locked conformation and variable electronic effects by replacing one hydrogen with bromine, iodine, and methyl, respectively, have been synthesized to modulate the push-pull effect. These chromophores exhibited intramolecular H-bonding, as evidenced by single-crystal X-ray and 1H NMR studies. The fluorescence quantum yields (ϕf) of all of the chromophores were found to be more than an order of magnitude higher (∼0.2) than the unlocked chromophores (∼0.01). It was found that the electronic effect did affect the nonradiative rates, as the quantum yields were found to vary with respect to different analogues in the same solvents. The effect of the push-pull effect was also evident by a higher Stokes-shifted emission in the case of the methyl derivative with respect to the bromo- and iodo-analogues. Furthermore, the emission spectra of these GFP chromophores were found to show positive solvatochromism, which was supported by a quantum chemical calculation. A detailed study, correlating the observed spectral changes with various solvent functions and supported by computational results, established a facile proton transfer, followed by twisted intramolecular charge transfer (TICT) to be the major nonradiative channels of these chromophores. Besides, a completely novel usage of these chromophores was explored for the first time by studying their third-order nonlinear optical characteristics in DMSO using a single-beam Z-scan technique. All of the chromophores exhibited tunable nonlinear refraction (NLR) and nonlinear absorption (NLA) properties that depend upon different substituent groups present in the chromophores. Here, the NLR was due to the effect of self-defocusing, whereas the NLA was triggered by reverse saturable absorption, which is attributed to the two-photon absorption (TPA) process. Surprisingly, the efficiency of the TPA ability of the chromophores was found to be a function of the induced electronic effect. Hence, this work opens a new route for the utility of the ortho-locked GFP chromophores in the field of nonlinear optical applications.
Bioactive metabolites of licorice and thyme as potential inhibitors of Cox1 enzyme of phytopathogens of Capsicum annuum L.: In-silico approaches
Himanshu Arora, Gourav Choudhir, Arunava Sengupta, Abhishek Sharma, Satyawati Sharma
Journal of Biomolecular Structure and Dynamics, 2025
Cytochrome c oxidase subunit 1 (Cox1), a key enzyme, has a crucial role in cellular respiration in eukaryotes and prokaryotes. Generally, respiratory inhibitors are considered one of the types of chemical pesticides. Thyme oil and licorice aqueous extract have been reported to have antifungal activities against fungal phytopathogens of Capsicum annuum L., i.e., Colletotrichum capsici, Fusarium oxysporum, and Pythium aphanidermatum. The present study focuses on identifying the key bioactive molecules of thyme and licorice botanicals inhibiting the activity of the Cox1 enzymes of the above mentioned phytopathogens, employing the in-silico approach. From a wide range of bioactive molecules screened, the molecular docking indicated trans-carveol, carvacrol, kaempferol 3-rhamnoside 7-xyloside, kaempferitrin, and astragalin 7-rhamnoside as the potential inhibitors for Cox1 of C. capsici, β-Caryophyllene, Caryophyllene acetate, hispaglabridin A, kaempferol 3-rhamnoside 7-xyloside and licorice glycoside A for Cox1 of F. oxysporum and (+)-Longifolen, Caryophyllene acetate, Hispaglabridin A, Neoliquiritin 2''-apioside and Licorice-saponin A3 for Cox1 of P. aphanidermatum. Most of the top-scoring bioactive molecules exhibited higher binding affinity with the targets than the chemical compound, i.e., carbendazim. Density functional theory (DFT) analysis confirmed the reactivity of the top-docked compounds. Molecular dynamic simulations confirmed the stability of docked complexes when evaluated through multiple descriptors. Additionally, MM/PBSA analysis supported the findings, indicating the spontaneous binding of the enzymes to the screened ligands. ADMET analysis revealed the safety of the selected bioactive compounds. The present findings could be useful in developing biopesticidal formulations as efficient and sustainable alternatives to chemical pesticides.Communicated by Ramaswamy H. Sarma.
Ni(ii) and Pd(ii) complexes of a new redox-active pentadentate azo-appended 2-aminophenol ligand: Pd(ii)-assisted intraligand cyclization forms a phenoxazinyl ring
Saumitra Bhowmik, Arunava Sengupta, Rabindranath Mukherjee
Dalton Transactions, 2024
Molecular and electronic structures of square planar complexes (1, [NiII{(LISQ)˙2−}], St = 1/2; 2, [PdII{(LISQ)˙2−}], St = 1/2; ) 3, [NiII{(LIBQ)−}]+/ 1+, St = 0); 4, [PdII{(L*AP)˙2−}]/ 2+ (phenoxazinyl ring formation), St = 1/2) are reported.
Understanding the gelation properties of the fluorophenyl glycosides of arabinoside gelators: experimental and theoretical studies
Sachchida N. Pandey, Navendu P. Pathak, Arunava Sengupta, Somnath Yadav
Soft Matter, 2024
Incorporating fluorine atoms into the aryl ring of phenolic arabinosides renders them capable of gelating organic solvents. However, increasing the number of fluorine atoms is not always beneficial.
A sugar-derived ligand for room temperature aerial oxidation or non-aqueous Markovnikov hydration of styrenes using a preformed or in situ generated Co complex
Sachchida Nand Pandey, Arunava Sengupta, Rajib Bera, Sohel Ali, Somnath Yadav
Catalysis Science and Technology, 2024
Phenoxazinyl Zn(ii) diradical complex formed via redox-driven cyclization of a 2-aminophenol-based N3O ligand. Isolation of the modified N3 ligand radical and its Ni(ii) complex
Narottam Mukhopadhyay, Arunava Sengupta, Francesc Lloret, Rabindranath Mukherjee
Dalton Transactions, 2024
Acetoxy Group-Directed Regioselective C2 Alkenylation of Indoles via Pd-Ag Bimetallic Catalysis
Aditya Paul, Arunava Sengupta, Bijan Sarkar, Somnath Yadav
Journal of Organic Chemistry, 2023
Organophotoredox-Catalyzed Cross-Dehydrogenative Sulfonamidation of Indoles and Other Heterocycles
Aditya Paul, Arunava Sengupta, Somnath Yadav
Journal of Organic Chemistry, 2023
Visible-light driven acetoxylation and dioxygenation of indoles via electron donor–acceptor complexes
Aditya Paul, Arunava Sengupta, Somnath Yadav
Chemical Communications, 2023
CuF2/MeOH-Catalyzed N3-Selective Chan-Lam Coupling of Hydantoins: Method and Mechanistic Insight
Tanumay Roy, Krishanu Mondal, Arunava Sengupta, Parthasarathi Das
Journal of Organic Chemistry, 2023
Exploiting Coordination Behavior of 7-Azaindole for Mechanistic Investigation of Chan-Lam Coupling and Application to 7-Azaindole Based Pharmacophores
Krishanu Mondal, Narottam Mukhopadhyay, Arunava Sengupta, Tanumay Roy, Parthasarathi Das
Chemistry A European Journal, 2023
Stereoselective Routes to Hexahydropyrroloindoles and Tetrahydropyrroloquinolines from Activated Aziridines and Electron Deficient 3 H-Indoles
Imtiyaz Ahmad Wani, Sahid Sk, Abhijit Mal, Arunava Sengupta, Manas K. Ghorai
Organic Letters, 2022
Controlled C–H bond activation leads to orthometalation and ring-hydroxylation in Ni(II) and Pd(II) complexes of a common tridentate azophenyl-salicylaldimine ligand
Akram Ali, Saumitra Bhowmik, Arunava Sengupta, Narottam Mukhopadhyay, Rabindranath Mukherjee
Inorganica Chimica Acta, 2022
Ni(ii) complexes of a new tetradentate NN′N′′O picolinoyl-1,2-phenylenediamide-phenolate redox-active ligand at different redox levels
Narottam Mukhopadhyay, Arunava Sengupta, Aswin Kottapurath Vijay, Francesc Lloret, Rabindranath Mukherjee
Dalton Transactions, 2022
Structure-gelation property relationships of phenolic glycosides of pentose sugars: pH dependent controlled release of curcumin
Navendu P. Pathak, Arunava Sengupta, Somnath Yadav
Materials Advances, 2022
UV to NIR multistate electrochromism and electrofluorochromism in dibenzophenazine-arylamine derivatives
Bahadur Sk, Madhurima Sarkar, Kuldeep Singh, Arunava Sengupta, Abhijit Patra
Chemical Communications, 2021
Arylamination via ortho-fusion on an azo-appended pyridine carboxamide complex of copper(II)
Indresh Verma, Narottam Mukhopadhyay, Arunava Sengupta, Rabindranath Mukherjee
Journal of Organometallic Chemistry, 2021
Switchover from NiIIN2O2 to NiIIN2O2S2 coordination triggered by the redox behaviour of a non-innocent 2-aminophenolate ligand
Akram Ali, Arunava Sengupta, Francesc Lloret, Rabindranath Mukherjee
Journal of Chemical Sciences, 2021
Dimeric Mn(ii), Co(ii), Ni(ii) and Cu(ii) complexes of a common carboxylate-appended (2-pyridyl)alkylamine ligand: structure, magnetism and DFT study
Munirathnam Manda, Himanshu Arora, Arunava Sengupta, Shashi Kant, Francesc Lloret, Rabindranath Mukherjee
New Journal of Chemistry, 2021
Five-coordinate [(L2)2CuII(X)]z+ (X = H2O, z = 2; X = N3−, SCN−, NO2−, MeCO2−, Cl−, Br−, z = 1; L2 = 1-benzyl-[3-(2-pyridyl)]pyrazole) complexes: Structural index, EPR and redox potential correlations
Jhumpa Mukherjee, Arunava Sengupta, Rabindranath Mukherjee
Inorganica Chimica Acta, 2020
Structure, magnetism and reactivity of a {MnIII(μ-O)2MnIV}3+ core towards oxidation of phenols
Akhilesh Kumar, Arunava Sengupta, Serhiy Demeshko, Rabindranath Mukherjee
Polyhedron, 2019
Chemical fixation of atmospheric co2 by copper(Ii) complexes of a tridentate n-donor ligand
Anindita De, Arunava Sengupta, Francesc Lloret, Rabindranath Mukherjee
Zeitschrift Fur Anorganische Und Allgemeine Chemie, 2018
Memory of Chirality Concept in Asymmetric Intermolecular Michael Addition of α-Amino Ester Enolates to Enones and Nitroalkenes
Vadlamuri Veeraswamy, Gaurav Goswami, Satobhisha Mukherjee, Koena Ghosh, Manik Lal Saha, Arunava Sengupta, Manas K. Ghorai
Journal of Organic Chemistry, 2018
Copper (ii) dimers stabilized by bis(phenol) amine ligands: Theoretical and experimental insights
Amit Rajput, Akhilesh Kumar, Arunava Sengupta, Priyanka Tyagi, Himanshu Arora
New Journal of Chemistry, 2018
Bimolecular Photoinduced Electron Transfer in Static Quenching Regime: Illustration of Marcus Inversion in Micelle
Puspal Mukherjee, Aritra Das, Arunava Sengupta, Pratik Sen
Journal of Physical Chemistry B, 2017
Low-spin [MII(L)2] and [MIII(L)2]+ (M = Fe and Co) complexes of tridentate azo-containing pyridine/pyrazine amide ligands: Structures, properties and redox potential correlations
Arunava Sengupta, Amit Rajput, Suman K. Barman, Rabindranath Mukherjee
Dalton Transactions, 2017
Palladium(II) complexes of a redox-active o-aminophenolate-based ONSN ligand. Proof-of-concept of hemilability in reactivity with PPh3 providing ONNP and ONSP coordination
Journal of the Indian Chemical Society, 2015

RECENT SCHOLAR PUBLICATIONS

Cascade C─ H‐Alkenylation‐Intramolecular Aminative Cyclization of Benzylsulfonamides for Synthesis of Isoindoline Cores
A Bairagi, A Sengupta, S Ali, A Paul, S Yadav
Asian Journal of Organic Chemistry 14 (8), e00379 , 2025
2025
Asymmetric Ring-Opening Transformation of Racemic Aziridines: Enantioselective Route to Benzodiazepines
AK Sharma, S Yadav, A Sengupta, N Rahman, MK Ghorai
The Journal of Organic Chemistry, https://doi.org/10.1021/acs.joc.5c01013 , 2025
2025
Citations: 4
Four-Component Selenoazaindolylation-Alkoxylation of Styrenes for the Synthesis of Azaindolyl β-Alkoxyalkyl Selenoethers
R Bera, A Bairagi, A Sengupta, SN Pandey, R Sk, S Yadav
Organic Letters 27 (28), 7956-7861 , 2025
2025
Revealing the importance of the C(1) position to modulate the photophysics and Z-scan responses of o-locked GFP chromophores
D Paul, P Sahoo, AK Pradhan, PK Datta, A Sengupta*, U Tripathy*, ...
Journal of Chemical Physics 162 (23), 234308 , 2025
2025
Citations: 8
CuF 2 /DTBP-Catalyzed Chan-Lam Coupling of Oxazolidinones with Arylboronic Acid Pinacol Ester: Scope and Application
T Roy, K Mondal, P Halder, A Sengupta, P Das
The Journal of Organic Chemistry 90 (18), 6219-6232 , 2025
2025
Citations: 7
Site selective Heck arylation of N-vinyl-7-azaindole engineered by N-oxide activation: scope and mechanistic studies
S Patra, A Sengupta, P Das
Organic Chemistry Frontiers 12 (20), 5379-5386 , 2025
2025
Revealing the Role of Electronic Effect to Modulate the Photophysics and Z-Scan Responses of o-Locked GFP Chromophores
D Paul, P Sahoo, A Sengupta*, U Tripathy*, S Chatterjee*
The Journal of Physical Chemistry B 129 (2), 692-711 , 2025
2025
Citations: 11
A sugar-derived ligand for room temperature aerial oxidation or non-aqueous Markovnikov hydration of styrenes via a preformed or in situ generated Co complex
A Sengupta, SN Pandey, R Bera, S Ali, S Yadav*
Catalysis Science & Technology 14 (16), 4487-4495 , 2024
2024
Citations: 3
Ni (ii) and Pd (ii) complexes of a new redox-active pentadentate azo-appended 2-aminophenol ligand: Pd (ii)-assisted intraligand cyclization forms a phenoxazinyl ring
S Bhowmik, A Sengupta, R Mukherjee*
Dalton Transactions 53 (33), 14046-14064 , 2024
2024
Citations: 4
Understanding the gelation properties of the fluorophenyl glycosides of arabinoside gelators: experimental and theoretical studies
SN Pandey, NP Pathak, A Sengupta*, S Yadav*
Soft Matter 20 (36), 7111-7121 , 2024
2024
Citations: 3
Phenoxazinyl Zn (ii) diradical complex formed via redox-driven cyclization of a 2-aminophenol-based N 3 O ligand. Isolation of the modified N 3 ligand radical and its Ni (ii …
N Mukhopadhyay, A Sengupta, F Lloret, R Mukherjee*
Dalton Transactions 53 (15), 6515-6519 , 2024
2024
Citations: 8
Bioactive metabolites of licorice and thyme as potential inhibitors of Cox1 enzyme of phytopathogens of Capsicum annuum L.: In-silico approaches
H Arora, G Choudhir, A Sengupta, A Sharma, S Sharma
Journal of Biomolecular Structure and Dynamics 43 (9), 4534-4551 , 2024
2024
Citations: 6
Acetoxy Group-Directed Regioselective C2 Alkenylation of Indoles via Pd–Ag Bimetallic Catalysis
A Sengupta, A Paul, B Sarkar, S Yadav*
The Journal of Organic Chemistry 88 (20), 14423-14434 , 2023
2023
Citations: 12
Organophotoredox-Catalyzed Cross-Dehydrogenative Sulfonamidation of Indoles and Other Heterocycles
A Paul, A Sengupta, S Yadav*
The Journal of Organic Chemistry 88 (14), 9599-9614 , 2023
2023
Citations: 14
CuF2/MeOH-Catalyzed N3-Selective Chan-Lam Coupling of Hydantoins: Method and Mechanistic Insight
T Roy, K Mondal, A Sengupta, P Das*
The Journal of Organic Chemistry 88 (9), 6058-6070 , 2023
2023
Citations: 19
Exploiting Coordination Behavior of 7‐Azaindole for Mechanistic Investigation of Chan‐Lam Coupling and Application to 7‐Azaindole Based Pharmacophores
K Mondal, N Mukhopadhyay, A Sengupta, T Roy, P Das*
Chemistry–A European Journal 29 (16), e202203718 , 2023
2023
Citations: 20
Visible-Light Driven Acetoxylation and Dioxygenation of Indoles via Electron Donor-Acceptor Complexes
A Paul, A Sengupta, S Yadav*
Chemical Communications 59 (48), 7455-7458 , 2023
2023
Citations: 17
Stereoselective Routes to Hexahydropyrroloindoles and Tetrahydropyrroloquinolines from Activated Aziridines and Electron Deficient 3 H-Indoles
IA Wani, S Sk, A Mal, A Sengupta, MK Ghorai*
Organic Letters 24 (43), 7867-7872 , 2022
2022
Citations: 20
Controlled C–H bond activation leads to orthometalation and ring-hydroxylation in Ni (II) and Pd (II) complexes of a common tridentate azophenyl-salicylaldimine ligand
A Ali, S Bhowmik, A Sengupta, N Mukhopadhyay, R Mukherjee*
Inorganica Chimica Acta 538, 120960 , 2022
2022
Citations: 3
Ni (ii) complexes of a new tetradentate NN′ N′′ O picolinoyl-1, 2-phenylenediamide-phenolate redox-active ligand at different redox levels
N Mukhopadhyay, A Sengupta, AK Vijay, F Lloret, R Mukherjee*
Dalton Transactions 51 (23), 9017-9029 , 2022
2022
Citations: 11

MOST CITED SCHOLAR PUBLICATIONS

Bimolecular photoinduced electron transfer in static quenching regime: illustration of Marcus inversion in micelle
P Mukherjee, A Das, A Sengupta, P Sen*
The Journal of Physical Chemistry B 121 (7), 1610-1622 , 2017
2017
Citations: 29
UV to NIR multistate electrochromism and electrofluorochromism in dibenzophenazine-arylamine derivatives
B Sk, M Sarkar, K Singh, A Sengupta, A Patra*
Chemical Communications 57 (99), 13590-13593 , 2021
2021
Citations: 21
Copper (II) dimers stabilized by bis (phenol) amine ligands: theoretical and experimental insights
A Rajput*, A Kumar, A Sengupta, P Tyagi, H Arora*
New Journal of Chemistry 42 (15), 12621-12631 , 2018
2018
Citations: 21
Exploiting Coordination Behavior of 7‐Azaindole for Mechanistic Investigation of Chan‐Lam Coupling and Application to 7‐Azaindole Based Pharmacophores
K Mondal, N Mukhopadhyay, A Sengupta, T Roy, P Das*
Chemistry–A European Journal 29 (16), e202203718 , 2023
2023
Citations: 20
Stereoselective Routes to Hexahydropyrroloindoles and Tetrahydropyrroloquinolines from Activated Aziridines and Electron Deficient 3 H-Indoles
IA Wani, S Sk, A Mal, A Sengupta, MK Ghorai*
Organic Letters 24 (43), 7867-7872 , 2022
2022
Citations: 20
CuF2/MeOH-Catalyzed N3-Selective Chan-Lam Coupling of Hydantoins: Method and Mechanistic Insight
T Roy, K Mondal, A Sengupta, P Das*
The Journal of Organic Chemistry 88 (9), 6058-6070 , 2023
2023
Citations: 19
Visible-Light Driven Acetoxylation and Dioxygenation of Indoles via Electron Donor-Acceptor Complexes
A Paul, A Sengupta, S Yadav*
Chemical Communications 59 (48), 7455-7458 , 2023
2023
Citations: 17
Dimeric Mn (II), Co (II), Ni (II) and Cu (II) complexes of a common carboxylate-appended (2-pyridyl) alkylamine ligand: structure, magnetism and DFT study
M Manda, H Arora, A Sengupta, S Kant, F Lloret, R Mukherjee*
New Journal of Chemistry 45 (35), 16019-16029 , 2021
2021
Citations: 16
Memory of chirality concept in asymmetric intermolecular michael addition of α-amino ester enolates to enones and nitroalkenes
V Veeraswamy, G Goswami, S Mukherjee, K Ghosh, ML Saha, ...
The Journal of organic chemistry 83 (3), 1106-1115 , 2018
2018
Citations: 15
Organophotoredox-Catalyzed Cross-Dehydrogenative Sulfonamidation of Indoles and Other Heterocycles
A Paul, A Sengupta, S Yadav*
The Journal of Organic Chemistry 88 (14), 9599-9614 , 2023
2023
Citations: 14
Low-spin [M II (L) 2] and [M III (L) 2]+(M= Fe and Co) complexes of tridentate azo-containing pyridine/pyrazine amide ligands: structures, properties and redox potential …
A Sengupta, A Rajput, SK Barman, R Mukherjee*
Dalton Transactions 46 (34), 11291-11305 , 2017
2017
Citations: 14
Acetoxy Group-Directed Regioselective C2 Alkenylation of Indoles via Pd–Ag Bimetallic Catalysis
A Sengupta, A Paul, B Sarkar, S Yadav*
The Journal of Organic Chemistry 88 (20), 14423-14434 , 2023
2023
Citations: 12
Structure, magnetism and reactivity of a {MnIII(μ–O)2MnIV}3+ core towards oxidation of phenols
A Kumar, A Sengupta, S Demeshko, R Mukherjee*
Polyhedron 172, 226-235 , 2019
2019
Citations: 12
Revealing the Role of Electronic Effect to Modulate the Photophysics and Z-Scan Responses of o-Locked GFP Chromophores
D Paul, P Sahoo, A Sengupta*, U Tripathy*, S Chatterjee*
The Journal of Physical Chemistry B 129 (2), 692-711 , 2025
2025
Citations: 11
Ni (ii) complexes of a new tetradentate NN′ N′′ O picolinoyl-1, 2-phenylenediamide-phenolate redox-active ligand at different redox levels
N Mukhopadhyay, A Sengupta, AK Vijay, F Lloret, R Mukherjee*
Dalton Transactions 51 (23), 9017-9029 , 2022
2022
Citations: 11
Switchover from Ni II N 2 O 2 to Ni II N 2 O 2 S 2 coordination triggered by the redox behaviour of a non-innocent 2-aminophenolate ligand
A Ali, A Sengupta, F Lloret, R Mukherjee*
Journal of Chemical Sciences 133, 1-14 , 2021
2021
Citations: 11
Palladium(II) complexes of a redox-active o-aminophenolate-based ONSN ligand. Proof-of-concept of hemilability in reactivity with PPh3 providing ONNP and ONSP coordination
A Ali, A Sengupta, R Mukherjee*
Journal of Indian Chemical Society 92, 1981-1991 , 2015
2015
Citations: 10
Chemical Fixation of Atmospheric CO2 by Copper (II) Complexes of a Tridentate N‐donor Ligand
A De, A Sengupta, F Lloret, R Mukherjee*
Zeitschrift für anorganische und allgemeine Chemie 644 (14), 801-811 , 2018
2018
Citations: 9
Revealing the importance of the C(1) position to modulate the photophysics and Z-scan responses of o-locked GFP chromophores
D Paul, P Sahoo, AK Pradhan, PK Datta, A Sengupta*, U Tripathy*, ...
Journal of Chemical Physics 162 (23), 234308 , 2025
2025
Citations: 8
Phenoxazinyl Zn (ii) diradical complex formed via redox-driven cyclization of a 2-aminophenol-based N 3 O ligand. Isolation of the modified N 3 ligand radical and its Ni (ii …
N Mukhopadhyay, A Sengupta, F Lloret, R Mukherjee*
Dalton Transactions 53 (15), 6515-6519 , 2024
2024
Citations: 8

Dr. Arunava Sengupta

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