- Crystal structures of chemical compounds
- Catalytic C–H Functionalization Methods
- Vanadium and Halogenation Chemistry
- Radical Photochemical Reactions
- Polyoxometalates: Synthesis and Applications
- Crystallography and molecular interactions
- Metal-Catalyzed Oxygenation Mechanisms
- Phenothiazines and Benzothiazines Synthesis and Activities
- Organophosphorus compounds synthesis
- Molecular Sensors and Ion Detection
- Asymmetric Hydrogenation and Catalysis
- Herpesvirus Infections and Treatments
- Cytomegalovirus and herpesvirus research
- Organometallic Compounds Synthesis and Characterization
- Axial and Atropisomeric Chirality Synthesis
- Metal complexes synthesis and properties
- Hepatitis C virus research
- Sulfur-Based Synthesis Techniques
- Crystallization and Solubility Studies
- Advanced Chemical Sensor Technologies
- Catalytic Alkyne Reactions
- Synthetic Organic Chemistry Methods
- Analytical chemistry methods development
- Synthesis and Catalytic Reactions
- Water Treatment and Disinfection
United States Pharmacopeial Convention
2024
University of Calcutta
2024
Western University
2014
University of Pretoria
2011
University of Hyderabad
2006-2009
Abstract Ru(II)‐catalyzed and solvent‐switched [3+2]‐spiroannulation [4+n] (n=1, 2, 3) annulations of 2‐aryl quinazolinone or 2‐aryl‐2,3‐dihydrophthalazine‐1,4‐diones with ynones alkynyl alcohol 1,3‐diynes under mild reaction conditions have been analyzed. These reactions take place in the presence appropriate solvent features a redox‐neutral pathway. Ynone serves as an ‘atypical one‐carbon unit’ [4+1] annulation generates tetrasubstituted carbon center bearing diverse heterocycles through...
Abstract In an acetonitrile/water mixture, reactions of the N , ′‐bis(diacetyl)hydrazine (H 2 diah), bis(acetylacetonato)oxidovanadium(IV) [VO(acac) ] and monodentate ‐coordinating heterocycles (hc) in a 1:2:2 mol ratio provide yellow divanadium(V) complexes formula [(hc)O V(μ‐diah)VO (hc)] ( 1 hc = imidazole; pyrazole; 3 3,5‐dimethyl pyrazole). On other hand, same solvent mixture reagents 1:4:2 produce green linear tetravanadium(IV,V,V,IV) [(acac) OV(μ‐O)VO(hc)(μ‐diah)(hc)OV(μ‐O)VO(acac) 4...
Two structurally distinct and biologically privileged succinimide isoindole heteroarenes bearing benzothiadiazinedioxide motif-centered hybrid conjugates are proficiently achieved through Rh(III)-catalyzed sequential C(sp
In the title compound, 3C(12)H(24)N(+)·C(5)H(7)N(2)O(7)P(2) (3-)·C(2)H(6)O·H(2)O, zoledronic acid mol-ecule is singly protonated and stabilized by an intra-molecular O-H⋯O inter-action. The three-dimensional crystal structure inter-molecular O-H⋯O, O-H⋯N N-H⋯O inter-actions. ethanol solvent disordered over two positions; site-occupancy factor of major component 0.510 (4).
Distinctive, green, innovative, and well-organized photoinduced (metal- or photocatalyst-free) regioselective decarbonylative decarboxylative C–O bond functionalization protocols to access aryl 2-aminobenzoates 2-substituted benzoxazinone derivatives in excellent yields have been devised. These are achieved through the chemoselective scission of isatoic anhydride with ketones, diaryliodonium triflate, nitroalkene, phthalazinone, phenol derivatives, which, turn, served as representative...
The present article provides a novel technique for the co-amorphous formation of acyclovir and oxalic acid as an excipient. Designated ACV-oxalic acid, methods preparation thereof its use in pharmaceutical applications are described. was characterized by powder X-ray diffraction, differential scanning calorimetry thermogravimetric analysis. Stability with respect to relative humidity (RH) evaluated compared parent ACV. aqueous solubility significantly improved (about 8 times more soluble) at...
In the title compound, C(4)H(14)N(2) (2+)·2C(7)H(5)O(3) (-), both N,N-dimethyl-ethylenediamine N atoms are protonated and two 3-hy-droxy-benzoate anions act as counter-ions. crystal, cations linked by a network of N-H⋯O O-H⋯O hydrogen bonds.