ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): Ashok G. Gadre, V.V. Nawathye, D.B. Dalavi, D. J. Upadhyaya, B. R. Thorat, R. S. Yamgar

Email(s): bthorat78@gmail.com

DOI: Not Available

Address: Ashok G. Gadre, V.V. Nawathye, D.B. Dalavi, D. J. Upadhyaya, B. R. Thorat* and R. S. Yamgar
Chemistry Research Laboratory, Patkar-Varde College, Goregaon (W), Mumbai 62.
*Corresponding Author

Published In:   Volume - 4,      Issue - 10,     Year - 2011


ABSTRACT:
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 nitro-compound can be reduced to 8-amino-6-chlorocoumarine. This was then diazotized and then coupled with different ß-diketones and ß-ketoesters gives corresponding hydrazones. The hydrazones were cyclized by reacting with hydrazines to get pyrazole and pyrazolone derivatives.


Cite this article:
Ashok G. Gadre, V.V. Nawathye, D.B. Dalavi, D. J. Upadhyaya, B. R. Thorat, R. S. Yamgar. Synthesis and Characterization of Hydrazones, Pyrazoles and Pyrazolones from 8-Amino-6-Chloro Coumarine. Asian J. Research Chem. 4(10): Oct., 2011; Page 1621-1624.


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