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Amrāvati, India

Parihar R.T.,Vidnyan College | Rathod S.P.,G S G College | Rajput P.R.,Vidyabharti Mahavidyalaya
Rasayan Journal of Chemistry | Year: 2011

The synthesis, spectral analysis and effect on some crop plants by some 4-Aroylisoxazoles with 3-aroylflavone on treatment with NH2OH.HCl. We got two series while carried out in different aromatic acids. In series, we got 3-(2-hydroxy-3,5-dichlorophenyl)-4-anisoyl-5-(3-nitro phenyl) isoxazole and 3-(2-hydroxy-3,5-dichlorophenyl)-4-benzoyl-5-(3'-nitrophenyl) isoxazole. It has been revealed that, the use of piperidine in DMSO as the solvent in the above reaction influences the rate of the reaction and also the yield of the products.. All these compounds have been analyzed by UV, IR and NMR for structure. The newly synthesized chlorosubstituted isoxazoles were studied. © 2011 RASAYAN. All rights reserved. Source

Rathod S.P.,P.A. College | Parihar R.T.,Vidnyan College | Rajput P.R.,Vidyabharti Mahavidyalaya
Rasayan Journal of Chemistry | Year: 2012

As a part of systematic investigation of synthesis, spectral analysis of 4-phenyl-2-hydroxy chloro substituted 2- imino-1,3-thiazines with phenyl thiourea and diphenyl thiourea from chalcone gives series, 4-(2-hydroxy-3, 5-dichlorophenyl)-6-(hexyl)-2-iminophenyl-1, 3-thiazines and 4-(2-hydroxy-3, 5-dichlorophenyl)- 6-(hexyl)-2-iminophenyl-3-phenyl-1,3-thiazines (3a-6a) from phenyl thiourea and diphenyl thiourea and the interaction of transition metal ion (cobalt II) and (copper II) have been investigated by pH metric technique at 0.1M ionic strength and at 27 ± 0.5 °C in 70% DMF-water medium. © 2012 Rasāyan. Source

Sadashivrao B.P.,Vidyabharti Mahavidyalaya
International Journal of Applied Chemistry | Year: 2010

Some new substituted 3-aroyl flavanones (4a-i) were synthesized by condensation of substituted dibenzoyl methanes (3a-b) with aromatic aldehydes in ethanol containing small amount of piperidine. The structures of 13 compound few compounds were confirmed on the basis of LR., P.M.R.; C and Mass spectra and chemical analysis. The substituted 3-aroyl flavanones showed diverse biological activity. © Research India Publications. Source

Thakur S.D.,Rdik And Nkd College | Mahajan D.T.,Vidyabharti Mahavidyalaya | Munot K.P.,P.A. College | Deshmukh R.D.,Rdik And Nkd College | Tihile M.S.,Rdik And Nkd College
Der Pharma Chemica | Year: 2011

The interaction between Th(III), Sm(III), Nd(III) and Pr(III) Metal Ions And 2-Mercapto-4-(4'-Aminophenyl)-6-(2'-Hydroxy-5'-Bromophenyl)Pyrimidine[M4AHBP](L1) and 2-Mercapto-4-(2'-Chlorophenyl)-6-(2'-Hydroxy-5'-Bromophenyl)Pyrimidine[M2CHBP](L2) have been studied at 0.1 M Ionic Strength in 70 % Dioxane-water mixture by Bjerrum method as adopted by Calvin and Wilson. It is observed that Th(III), Sm(III), Nd(III) and Pr(III) Metal ions form 1:1 and 1:2 complexes with ligands (L1 & L2). The data obtained were used to estimate and compare the values of proton-ligand stability constant (pK) and metal-ligand stability constants (log k). From estimated data (pK and log k), the effects of substituents were studied. Source

Meshram U.P.,Commerce and Science College | Khobragade B.G.,Government Vidarbha Institute of Science and Humanities | Narwade M.L.,Vidyabharti Mahavidyalaya | Khobragade V.B.,Government Vidarbha Institute of Science and Humanities
Der Pharma Chemica | Year: 2011

Ultrasonic velocities and densities of 3-(2-hydroxyl-4-methyl phenyl)-5-phenyl isoxazoline (L1) and 1-phenyl-3-(2-hydroxyl-3-nitro-4-methyl phenyl)-5-phenyl pyrazoline (L2)) at different concentrations in dioxane. Different acoustic properties like partial molal volume, adiabatic compressibility, apparent molal compressibility, intermolecular free length, specific acoustic impedance and relative association etc., have been determined. These parameters obtained have been interpreted in terms of solute-solute interactions. Effect of L1) & L) ligand and its complexes on germination of seeds. Source

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