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Aurangābād, India

Madje B.R.,Vasantrao Naik Mahavidyalaya | Shelke K.F.,Dr. Babasaheb Ambedkar Marathwada University | Sapkal S.B.,Dr. Babasaheb Ambedkar Marathwada University | Kakade G.K.,Dr. Babasaheb Ambedkar Marathwada University | Shingare M.S.,Dr. Babasaheb Ambedkar Marathwada University
Green Chemistry Letters and Reviews | Year: 2010

Alum (KAl(SO4)2 12H2O) performs as a novel catalyst for the synthesis of anthraquinone derivatives from phthalic anhydride and substituted benzenes in good to excellent yields (70 96%) using water as a solvent at ambient temperature. Several solvents were examined for this reaction; however, in terms of reaction yield and time, water was found to be the optimum solvent. The remarkable advantages offered by this method are an inexpensive and easily available catalyst, a simple procedure, mild conditions, and much faster (60 120 min) reactions. © 2010 Taylor & Francis. Source

Chaudhari V.,Yogeshwari Mahavidyalaya | Ubale M.,Vasantrao Naik Mahavidyalaya
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2012

An isocratic reversed phase stability-indicating high-performance liquid chromatographic (HPLC) assay method was developed and validated for quantitative determination of Lovastatin in bulk drugs. An isocraticreversed phase HPLC method was developed to separate the drug from the degradation productsusing an Inertsil ODS C18 (250 x 4.6) mm5μ column and the mobile phase containing 2.0gm Sodium dihydrogen phosphate and 1.0 gm 1-octaneSulfonic acid salt in 1000ml waterfilter and mixed. Prepare a homogenous mixture of buffermethanol and acetonitrile (55:28:17v/v/v). The detection was carried out at wavelength 230 nm. The developed method was validated with respect to linearityaccuracy (recovery)precisionsystem suitabilityselectivityrobustness prove the stability indicating ability of the method. Source

Farooqui M.,Post Graduate and Research Center | Ubale M.,Vasantrao Naik Mahavidyalaya
International Journal of ChemTech Research | Year: 2010

Paramagnetic oxidation of 4-hydroxy benzaldehyde has been investigated at 25°C using UV -Visible double beam spectrophotometer under acidic condition. The effect of variation of substrate, oxidant and H2SO4 was studied under pseudo first order reaction conditions. The order of reaction was found to be first order on oxidant, zero for substrate, and fractional order on [H2SO4]. The effect of salts such as KCl, KBr, KI, AlCl3, Al(NO3)3, Ca(NO3)2 and MgCl 2, etc. on oxidation of 4-hydroxy benzaldehyde was studied. Source

Wahegaonkar Nilima K.,Vasantrao Naik Mahavidyalaya | Shirurkar Deepavali D.,Annasaheb Magar Mahavidyalaya
International Journal of Pharma and Bio Sciences | Year: 2013

Fifteen different plants used in traditional Indian medicine were examined against eight fungal species viz. Aspergillus flavus, Aspergillus niger, Aspergillus terreus, Aspergillus oryzae, Aspergillus fumigatus, Fusarium verticillioides (Synonym F. moniliforme), Fusarium solani and Penicillium sp. using the agar disc diffusion method. The alcoholic extracts of 15 plants exhibited varying degrees of inhibition activity against the above seed borne fungi. Seven of the 15 plants studied had antifungal activity against above listed fungi while the remaining had no antifungal activity. Extent of activity also differed with the part of the plant used. Source

Madje B.R.,Vasantrao Naik Mahavidyalaya | Ubale M.B.,Vasantrao Naik Mahavidyalaya | Bharad J.V.,Vasantrao Naik Mahavidyalaya | Shingare M.S.,Dr. Babasaheb Ambedkar Marathwada University
South African Journal of Chemistry | Year: 2010

A new and efficient method to synthesize a 3,3,6,6,9-aryl-1,8-dioxo- octahydroxanthene derivative using alum as catalyst was performed in aqueous media. This method has several advantages such as environmental friendliness, high yields and simple workup procedure. Source

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