Showing papers in "Journal of the Indian Chemical Society in 2002"

TL;DR: New Schiff bases (la-e), 4ththiazolidinones (2a-e) and 2-azetidinone (3a-E) have been synthesized and tested for their antibacterial activity.

TL;DR: In this article, a template condensation reaction of dicarboxylic acids (malonic, succinic, glutaric, adipic, or phthalic) with primary diamines 1,2-diaminoethane, 1,3-diminopropane or diethylenetriamine in 1 : 2 : 2 molar ratio gives a newseries of 16 to 26 membered tetraazamacrocyclic complexes of composition [Sn(MaC n )Cl 2 ].

TL;DR: In this article, 3-(2',4',6'-trichlorophenoxymethyl)-4-(N-benzylidenylamino)-5-mercapto-1,2,4-triazoles (7a-j) have been synthesized, and their antimicrobial activities studied.

TL;DR: A new oxidimetric reagent, RNBrAg, where R is p-CH3C6H4SO2, is proposed for redox titrations in aqueous medium.

TL;DR: In this paper, the authors measured the densities of L-glycine at 288.15, 298.15 and 308.15 K in aqueous glucose solutions ranging from pure water to 25% glucose by mass.

TL;DR: Isolation of lupeol acetate from aerial parts and β-sitosterol from flowers of Pyrostegia venusta have been reported in this article, along with β-amyrin, friedelin and betulinic acid from heartwood of Punica granatum.

TL;DR: The oxidation rate-[micelle] profile is rationalized by Berezinmodel and binding constants of both the reactants with the micelle have been computed using the model and the data also fit into Piszkiewicz model.

TL;DR: In this article, the experimental and theoretical data regarding the preparation, characterization and analytical applications of four liquid-membrane electrodes were presented, which were used to determine Cu and Ni ions in aqueous solutions, both by direct potentiometry and potentiometric titration with EDTA.

TL;DR: In this paper, the magnetic moment corresponding to one unpaired electron was calculated for all the complexes with tetragonal geometry except the sulfato complexes, which are five-coordinate square-pyramidal.

TL;DR: The structure and stereochemistry of biologically active alkaloids isolated from Croton sparsiflorus, Cocculus taurifolius, C. pendulus, Corydalis meifolia and Stephania glabra were established and biogenetic type synthesis of phenanthroindolizidine alkaloid, tylophorine, seco-phenanthroINDolizidine, septicin, antofine and alkaloidal C are presented.

TL;DR: In this article, the electron density in the aromatic ring of the acetyl side-chain was manipulated in methanol with bromine at 0-5° to achieve good yield.

TL;DR: In this article, 2-Amino-3-cyano-4-(2'-chloro-7'-methylquinolin-3'-yl)-6-arylpyridines (3a-n) have been synthesized by the condensation of chalcones with malononitrile and ammonium acetate.

TL;DR: In this paper, the authors studied the deoximination of several aldo- and keto-oximes by quinolinium fluorochromate (QFC) in dimethylsulfoxide, exhibited a first order dependence on both the oxime and QFC.

TL;DR: In this paper, the authors reported that R. arrhizus showed maximum biosorption (45.54%) in case of Pb whereas A. niger was the only strain of Aspergillus niger adapted to 100 mg/l Pb and consumed 91.59% of Cd during active growth.

TL;DR: In this paper, the synthesis and antimicrobial activity of some new 6,8-disubstituted 2-(phenyl/methyl)-3-[4-(3-methyl-5-pyrazolinon-1-yl)carbonyl]quinazolinones were described.

TL;DR: The phytochemical investigation of Melia azedarach roots has afforded pentadecane, cosane, glycerol 1,2,3-tris-dodec-9-enoate, isomultiflorenone, epicerin acetate, 4α-methyl-24-ethyl-5α-cholastan-3β-ol and purtol as discussed by the authors.

TL;DR: The field of organic derivatives of chromium(VI) is still receiving attention from different laboratories across the world as mentioned in this paper, and both the synthetic and mechanistic aspects of the chemistry of complexed Cr V I compounds, have been brought into sharp focus.

TL;DR: Kinetics of oxidation of glycine by pyridinium bromochromate have been studied in aquo-acetic acid medium in presence of perchloric acid and mechanism involving C-C fission has been suggested.

TL;DR: Coordination complexes of Cr I I I, Mn I II, Fe I I II, VO I I VI, Zr I V and UO I I 2 with Schiff base derived from 2-hydroxy-5-methylacetophenone and isonicotinic acid hydrazide (HMAIH) have been prepared in this paper.

TL;DR: In this article, the results are consistent with bidentate chelation of the ligand with sremethine altrogen and ring sulfur atoms as bonding sites, the complexes are in an approximately octahedral environment.

TL;DR: Some new 4-substituted-benzylidene-1-[2(1H)-quinoxalinon-1'-ylacetamido]-2-phenyl/methyl-4-arylidene,5-oxoimidazolines have been prepared by reacting 2-oxaquinoxalin-1-ylacetylhyldrazine with preformed azlactones as discussed by the authors.

TL;DR: Some new thiosemicarbazones (2-7) have been synthesized via condensation of piperidone 1, thisemicarbazide and some acylating agents as discussed by the authors.

TL;DR: In this paper, partial molar volumes of some mineral salts, viz. sodium sulfate, potassium sulfate and ammonium sulfate in water have been determined from solution density measurements at various temperatures and mineral salt concentrations.

TL;DR: A brief review on aza-Claisen rearrangement with an emphasis on recent developments can be found in this paper, where the authors present an overview of recent developments in the area.

TL;DR: In this article, anionic dye fluorescein with inorganic ions in aqueous solution generates photovoltage when studied in photogalvanic cell and the experimental evidences support the excited state interaction of the dyes with the ions studied.

TL;DR: In this paper, the acoustical parameters of poly(4,4'-diphenylphthalidediphenylon-4, 4'-disulfonate)-1,2,dichloroethane, THF and DMF solutions (0.5-4.0%) at 30° have been determined from density, viscosity and ultrasonic velocity (2 MHz) data to understand solvophilicity and solvophobicity of the polymer under investigation.

TL;DR: In this article, the methyl esters and piperidides of fourteen 5-aryl-2E,4E-pentadienoic acids have been synthesized starting from the corresponding aryl aldehydes.

TL;DR: In this paper, the complex of Fe I I I with pyridine-2,6-dicarboxylic acid has been synthesized, and a single crystal X-ray analysis on the complex reveals the structure as distorted octahedral, Fe sitting at the center and surrounded by the two tridentate ligands.

TL;DR: In this article, a density functional and molecular orbital study of the conformational isomerism of an ethane molecule was conducted by adopting the geometry optimization technique, GOT, and the total energy, the eigen values of the frontier orbitals, the HOMO-LUMO gap, the global hardness, the golbal softness and chemical potential have been computed as a function of torsional angles of the internal rotation of the molecule.

TL;DR: Macrocyclic nickel(II) and copper (II) complexes have been prepared using preformed ligands, viz. bis(diacetylmonoxime))-1,2-phenylenediimine and bis((diacetsime)-3,4-tolylenedimine as mentioned in this paper.