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INDRAJIT KARMAKAR
INDRAJIT KARMAKAR
Department of Chemistry, Visva-Bharati
Verified email at visva-bharati.ac.in
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Year
Development of a water-mediated and catalyst-free green protocol for easy access to a huge array of diverse and densely functionalized pyrido [2, 3-d: 6, 5-d′] dipyrimidines …
G Brahmachari, K Nurjamal, I Karmakar, S Begam, N Nayek, B Mandal
ACS Sustainable Chemistry & Engineering 5 (10), 9494-9505, 2017
492017
Ultrasound-promoted expedient and green synthesis of diversely functionalized 6-amino-5-((4-hydroxy-2-oxo-2 H-chromen-3-yl)(aryl) methyl) pyrimidine-2, 4 (1 H, 3 H)-diones via …
G Brahmachari, M Mandal, I Karmakar, K Nurjamal, B Mandal
ACS sustainable chemistry & engineering 7 (6), 6369-6380, 2019
462019
Ultrasound-assisted expedient and green synthesis of a new series of diversely functionalized 7-aryl/heteroarylchromeno [4, 3-d] pyrido [1, 2-a] pyrimidin-6 (7 H)-ones via one …
G Brahmachari, I Karmakar, K Nurjamal
ACS sustainable chemistry & engineering 6 (8), 11018-11028, 2018
412018
Visible light-induced and singlet oxygen-mediated photochemical conversion of 4-hydroxy-α-benzopyrones to 2-hydroxy-3-oxo-2, 3-dihydrobenzofuran-2-carboxamides/carboxylates …
G Brahmachari, I Karmakar
The Journal of Organic Chemistry 85 (14), 8851-8864, 2020
372020
Visible Light-Driven and Singlet Oxygen-Mediated Photochemical Cross-Dehydrogenative C3–H Sulfenylation of 4-Hydroxycoumarins with Thiols Using Rose …
G Brahmachari, A Bhowmick, I Karmakar
The Journal of Organic Chemistry 86 (14), 9658-9669, 2021
342021
Catalyst-and solvent-free C sp2–H functionalization of 4-hydroxycoumarins via C-3 dehydrogenative aza-coupling under ball-milling
G Brahmachari, I Karmakar, P Karmakar
Green Chemistry 23 (13), 4762-4770, 2021
262021
Series of Functionalized 5-(2-Arylimidazo[1,2-a]pyridin-3-yl)pyrimidine-2,4(1H,3H)-diones: A Water-Mediated Three-Component Catalyst-Free Protocol Revisited
G Brahmachari, N Nayek, I Karmakar, K Nurjamal, SK Chandra, ...
The Journal of Organic Chemistry 85 (13), 8405-8414, 2020
192020
Triethylamine—a versatile organocatalyst in organic transformations: a decade update
G Brahmachari, N Nayek, K Nurjamal, I Karmakar, S Begam
Synthesis 50 (21), 4145-4164, 2018
172018
Electrochemical and mechanochemical synthesis of dihydrofuro [3, 2-c] chromenones via intramolecular C sp3–H cross-dehydrogenative oxygenation within warfarin frameworks: an …
I Karmakar, G Brahmachari
Green Chemistry 24 (7), 2825-2838, 2022
152022
Photochemical and electrochemical regioselective cross-dehydrogenative C(sp2)-H sulfenylation and selenylation of substituted benzo [a] phenazin-5-ols
N Nayek, P Karmakar, M Mandal, I Karmakar, G Brahmachari
New Journal of Chemistry 46 (28), 13483-13497, 2022
142022
Structural confirmation of biorelevant molecule N-iso-butyl, S-2-nitro-1-phenylethyl dithiocarbamate in gas phase and effect of fluorination
T Yadav, G Brahmachari, I Karmakar, P Yadav, A Agarwal, V Mukherjee, ...
Chemical Physics Letters 762, 138124, 2021
142021
Alum (KAl (SO4) 2.12 H2O)-an eco-friendly and versatile acid-catalyst in organic transformations: a recent update
G Brahmachari, K Nurjamal, S Begam, M Mandal, N Nayek, I Karmakar, ...
Current Green Chemistry 6 (1), 12-31, 2019
102019
Diversely Functionalized N‐Alkyl/Substituted alkyl, S‐2‐nitro‐1‐arylethyl Dithiocarbamates: Green Synthesis, Large Scale Application, and Insights in Reaction …
G Brahmachari, I Karmakar
ChemistrySelect 4 (2), 747-751, 2019
102019
Camphor-10-sulfonic acid (CSA): a water compatible organocatalyst in organic transformations
G Brahmachari, K Nurjamal, I Karmakar, M Mandal
Current Organocatalysis 5 (3), 165-181, 2018
102018
Electrochemical Regioselective C(sp2)–H Selenylation and Sulfenylation of Substituted 2-Amino-1,4-naphthoquinones
P Karmakar, I Karmakar, D Pal, S Das, G Brahmachari
The Journal of Organic Chemistry 88 (2), 1049-1060, 2023
92023
Visible‐Light‐Driven and Singlet Oxygen‐Mediated Synthesis of Biologically Relevant 2‐Hydroxyphenylated‐α‐Ketoamides Through Decarboxylative Amidation of 4‐Hydroxycoumarins
G Brahmachari, I Karmakar
Asian Journal of Organic Chemistry 11 (3), e202100800, 2022
9*2022
Synthesis, structural and vibrational spectroscopic investigation of molecules: Nn-butyl, S-2-nitro-1-phenylethyl dithiocarbamate and Nn-butyl, S-2-nitro-1-(4-flurophenyl …
T Yadav, G Brahmachari, I Karmakar, P Yadav, A Agarwal, V Mukherjee, ...
Vibrational Spectroscopy 111, 103151, 2020
92020
Facile and straightforward synthesis of racemic version of substituted 3-[3-(2-hydroxyphenyl)-3-oxo-1-arylpropyl]-4-hydroxycoumarins: easy access to a series of biorelevant …
G Brahmachari, M Mandal, I Karmakar
Synthesis 54 (02), 451-464, 2022
82022
Conformational and vibrational spectroscopic investigation of Nn‑butyl, S-2-nitro-1-(p-tolyl) ethyl dithiocarbamate–a bio-relevant sulfur molecule
T Yadav, G Brahmachari, I Karmakar, P Yadav, AK Prasad, A Pathak, ...
Journal of Molecular Structure 1238, 130450, 2021
72021
Ultrasound-Promoted Organic Synthesis – A Recent Update
IK Goutam Brahmachari, Nayana Nayek, Mullicka Mandal, Anindita Bhowmick
Current Organic Chemistry, 2021
72021
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