- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Essential Oils and Antimicrobial Activity
- Metal complexes synthesis and properties
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Computational Drug Discovery Methods
- Natural product bioactivities and synthesis
- Catalytic C–H Functionalization Methods
- Ethnobotanical and Medicinal Plants Studies
- Cyclopropane Reaction Mechanisms
- Medicinal Plants and Neuroprotection
- Pharmacological Effects of Natural Compounds
- Synthesis and Characterization of Heterocyclic Compounds
- Phytochemicals and Antioxidant Activities
- Lanthanide and Transition Metal Complexes
- Thermal and Kinetic Analysis
- Botanical Studies and Applications
- Synthesis and Biological Evaluation
- Crystallography and molecular interactions
- Natural Antidiabetic Agents Studies
- Crystal structures of chemical compounds
- Nonlinear Optical Materials Research
- Seed and Plant Biochemistry
- Phytochemistry and Bioactivity Studies
- Inorganic and Organometallic Chemistry
Central Council for Research in Ayurvedic Science
2022-2024
Tata Institute of Fundamental Research
2020-2022
TIFR Centre for Interdisciplinary Sciences
2020-2021
University of Hyderabad
2020-2021
Indian Institute of Science Education and Research Kolkata
2018
Raiganj University
1985
Abstract Agro-waste is the outcome of under-utilization bioresources and a lack knowledge to re-use this waste in proper ways or circular economy approach. In Indian medicinal system, root Cyperus scariosus (CS) used at large scale due their vital properties. Unfortunately, aerial part CS treated as agro-waste an under-utilized bioresource. Due knowledge, weed. This present study first ever attempt explore leaves medicinally nutrient rich source. To determine food nutritional values...
A N-heterocyclic olefin (NHO), a terminal alkene selectively activates aromatic C-F bonds without the need of any additional catalyst. As result, straightforward methodology was developed for formation different fluoroaryl-substituted alkenes in which central carbon-carbon double bond is twisted geometry.
The stem bark of Salix alba (SA) is extensively used in herbal medicine and nutraceuticals. non-availability quality standard available for SA the Ayurvedic Pharmacopeia India (API) leads inability to trace adulteration. In current study, has been developed interest control, as per international standards including API parameters. geographical changes could play a vital role phytochemicals’ nutrients’ variations. Hence, samples from different geolocations markets were analysed along with...
CAAC–CAAC dimers with alkylene spacers are presented. These compounds electron-rich and undergo one- two-electron oxidation.
Mimosa pudica L. (MP) is well-known plant in traditional medicinal system, especially India. Unfortunately, leaves of MP are less explored. To determine the food and nutritional value neglected part (MP), that leaves, phytochemicals metal ions were quantified by newly developed HPLC ICPOES-based methods. The content observed using analysis for chlorogenic acid, catechin, epicatechin was 141.823 (±8.171), 666.621 (±11.432), 293.175 (±12.743) μg/g, respectively. Using GC/MS/MS analysis, fatty...
The solids salinazide (Slz) and 3-chloro-2-nitrobenzoic acid (CNB) are thermosalient (TS) in nature their single component forms; upon cocrystallization with pentafluorobenzoic (PNB) 4,4′-bipyridine (BPY), respectively, they produced a salt (Slz-PFB) cocrystal, CNB-BPY, which also TS nature. A detailed structural analysis of all the forms question is carried out to verify if solid that shows behavior its form can be used as template generate new multicomponent forms. study significant...
The isolation of carbon-centered diradicals is always challenging due to synthetic difficulties and their limited stability. Herein we report the synthesis a trans-1,4-cyclohexylene bridged bis-NHC-CAAC dimer derived thermally stable dicationic diradical. diradical character this compound was confirmed by EPR spectroscopy. variable temperature study suggests singlet state be marginally more than triplet (2J = -5.5 cm-1 (ΔE ST 0.065 kJ mol-1)). presence bridge instrumental for successful...
Herein we report the synthesis of an N-heterocyclic carbene (NHC)-stabilised phosphinidene oxide, by controlled oxygenation a under ambient conditions.
The systematic combination of N-heterocyclic olefins (NHOs) with fluoroarenes resulted in twisted push–pull alkenes. These alkenes carry electron-donating cyclicdiamino substituents and two electron-withdrawing fluoroaryl the geminal positions. synthetic method can be extended to a variety substituted by varying NHO as well fluoroarenes. Solid-state molecular structures these molecules reveal notable elongation central C–C bond geometry alkene motif. Absorption properties were investigated...
The genus of Salix is used in food, medicine and nutraceuticals, standardized by using the single marker compound Salicin only. Stem bark official part for preparation various drugs, nutraceuticals food products, which may lead to overexploitation damage tree. There need search substitution stem with leaf alba L. (SA), yet not reported. Comparative phytochemicals viz. Salicin, Procyanidin B1 Catechin were quantified parts SA heart wood (SA-HW), (SA-SB) leaves (SA-L) L.by newly developed HPLC...
2-Pyrrolidinyl appended trisubstituted geminal diazaalkenes were used for the synthesis of intramolecular base-stabilized dications under 2-e oxidation.
Herein, we report the synthesis of a series push–pull imines by considering cyclic diamino substituent at C‐centre and fluoroaryl N‐centre. This has been achieved selective aromatic nucleophilic substitution different fluoroarenes N ‐H‐substituted ‐heterocyclic (NHIs) ambient conditions without any additional reagent. Solid‐state molecular structure analysis reveals elongation central C–N bond imine functionality, which is consistent with nature these imines. The further validated...