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Thorat, B. R.
- Synthesis and Photophysical Properties of Zn(II) and Cu(II) Complex of 2-{[(E)-(2-Hydroxyphenyl)Methylidene]Amino}Benzoic Acid
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Authors
B. R. Thorat
1,
M. Mustapha
1,
Dyaneshwar Shelke
1,
Ram Jadhav
1,
Swati Lele
1,
R. G. Atram
2,
R. Yamgar
1
Affiliations
1 P. G. Dept of Chemistry, Govt. of Maharashtra, Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN
2 Dept of Chemistry, Govt. of Maharashtra, Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN
1 P. G. Dept of Chemistry, Govt. of Maharashtra, Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN
2 Dept of Chemistry, Govt. of Maharashtra, Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN
Source
Asian Journal of Research in Chemistry, Vol 4, No 12 (2011), Pagination: 1887-1891Abstract
Schiff bases are versatile ligands which are synthesized by the condensation of primary amines with carbonyl groups of aldehydes or ketones. The fluorescence intensity can be increased by the formation of metal complex. Anthranilic acid or 2-aminophenol reacts with aldehydes or ketones forming bidentate or tridentate ligands which are able to form complex with transition metals. These ligands/chelates forming complexes with Zn(II) and Cu(II) metal ions. The Zn(II) complexes are yellow in nature while Cu(II) light blue color shows absorption in UV region.Keywords
Schiff Bases, Anthranilic Acid, 2-Hydroaniline, Aldehydes, Fluorescence, Complexes.- Synthesis and Characterization of Hydrazones, Pyrazoles and Pyrazolones from 8-Amino-6-Chloro Coumarine
Abstract Views :153 |
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Authors
Ashok G. Gadre
1,
V. V. Nawathye
1,
D. B. Dalavi
1,
D. J. Upadhyaya
1,
B. R. Thorat
1,
R. S. Yamgar
1
Affiliations
1 Chemistry Research Laboratory, Patkar-Varde College, Goregaon (W), Mumbai 62, IN
1 Chemistry Research Laboratory, Patkar-Varde College, Goregaon (W), Mumbai 62, IN
Source
Asian Journal of Research in Chemistry, Vol 4, No 10 (2011), Pagination: 1621-1624Abstract
8-Amino-6-chlorocoumarine has been synthesized by multistep synthesis which involves the successive chlorination and nitration of salicylaldehyde. The coumarin was synthesized by using Perkin reaction. The resulting nitrocompound can be reduced to 8-amino-6-chlorocoumarine. This was then diazotized and then coupled with different β-diketones and β-ketoesters gives corresponding hydrazones. The hydrazones were cyclized by reacting with hydrazines to get pyrazole and pyrazolone derivatives.Keywords
Coumarin, Hydrazones, Pyrazoles, Pyrazolones, Hydrazines, β-Biketones.- Synthesis and Characterization of Novel Transition Metal Complexes of 4-Methyl-7-Hydroxy 8-Formyl Coumarin and their Biological Activities
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Authors
Vijaya Pawar
1,
Sangeeta V. Chavan
1,
Ramesh S. Yamgar
1,
R. G. Atram
2,
B. R. Thorat
2,
Swati Bisht
2,
Sudhir S. Sawant
2
Affiliations
1 Department of Chemistry, Patkar College of Arts and Science, Goregaon (W), Mumbai 400 062, IN
2 P. G. Dept of Chemistry, Govt. of Maharashtra’s Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN
1 Department of Chemistry, Patkar College of Arts and Science, Goregaon (W), Mumbai 400 062, IN
2 P. G. Dept of Chemistry, Govt. of Maharashtra’s Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN