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Jadhav S.A.,Vivekanand Arts And S D Commerce And Science College | Pardeshi R.K.,Commerce and Science College | Shioorkar M.G.,Vivekanand Arts And S D Commerce And Science College | Chavan O.S.,Badrinarayan Barwale College | Vaidya S.R.,Vivekanand Arts And S D Commerce And Science College
Der Pharma Chemica | Year: 2015

Substituted Carboxylic acid condensed with Thiosemicarbazide to form 2-amino-5-substituted 1,3,4-Thiodiazole in various reaction conditions. Present work is comparative study of synthesis of 2-amino- 1, 3, 4-Thiodiazole with respect to yield, reaction time and reaction conditions. All products are characterized by spectral data and elemental analysis.

Chavan O.S.,Badrinarayan Barwale College | Chavan S.B.,Yashwant College | Baseer M.A.,Yashwant College
Der Pharma Chemica | Year: 2015

Armyl derivatives of Coumarins have been synthesized by Duff formylation method, in this method hydroxyl Coumarins was reacted with hexamethylene tetramine (HMTA) in presence of tri-fluoroacetic acid (TFAA) under microwave irradiation techniques. The structures of all synthesized compounds were confirmed by IR, NMR, Mass and CHN analysis. This is a newly developed efficient synthesis of formyl Coumarins under microwave irradiation technique by Duff formylation method.

Rai M.,Sant Gadge Baba Amravati University | Rai M.,University of Campinas | Ingle A.P.,Sant Gadge Baba Amravati University | Ingle A.P.,Badrinarayan Barwale College | And 5 more authors.
Current Nanoscience | Year: 2013

Nanotechnology is essentially related with the synthesis of nanoparticles of varying size and shapes. with the search of environment- friendly protocols for the synthesis of nanoparticles a diverse group of biological agents have been emerged. These biological agents are safe, eco-friendly and lead to green synthesis of nanoparticles. The present review focuses on the role of biological agent(s) towards the development of green nanotechnology, the applications of nanoparticles in different fields of science and technology, and also the toxicological effects of nanoparticles. © 2013 Bentham Science Publishers.

Joshi A.S.,Badrinarayan Barwale College | Deshpande S.S.,Rashtramata Indria Gandhi College | Kurtadikar M.L.,P.A. College
Proceedings - 2013 International Conference on Communication Systems and Network Technologies, CSNT 2013 | Year: 2013

Dielectric constant ε' and dielectric loss ε'' of seawater samples collected during the winter monsoon from Tropical Indian Ocean are measured. The Von Hippel method is used to measure dielectric properties, both real, ε' , and imaginary part, ε'', at 5 GHz and 30 °C using automated C-Band microwave bench set up. The dielectric constant ε' and dielectric loss ε'' are calculated using least square fitting technique. The salinity measurement of seawater samples are done on autosalinometer. Making use of salinity values of all samples and for 5 GHz and 30 °C, static dielectric constant and dielectric loss are estimated by Klein-Swift model and Ellison et al. model. Experimental and theoretical results are compared. The laboratory data obtained are significant for remote sensing applications in physical oceanography. © 2013 IEEE.

Jadhav S.A.,Vivekanand College | Shioorkar M.G.,Vivekanand College | Chavan O.S.,Badrinarayan Barwale College | Chavan R.V.,Vasantrao Naik College | And 2 more authors.
Der Pharma Chemica | Year: 2015

8-ethoxy-3-acetyl coumarin 1, thiosemicarbazide 2 was condensed under microwave irradition gives 2-(1-(8-ethoxy- 2-oxo-2H-chromen-3-yl) ethylidene) hydrazinecarbothioamide 3 then 3, chloroacetyl chloride 4, substituted aryl aldehydes 5, were condensed in presence of alum catalyst to formed 5-benzylidene-2-((E)-(1-(8-ethoxy-2-oxo-2Hchromen- 3yl)ethylidene)hydrazono) thiazolidin-4-one 6, by simple grinding technique at room temperature under solvent free condition. Synthesized compounds were confirmed by IR, NMR, Mass and CHN analysis.

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