Author Details

Scroll

Refine your search

Collections

Basic & Applied Science Collection

Co-Authors

Journals

Asian Journal of Research in Chemistry

Year

2011

Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All

Yamgar, R. S.

Synthesis and Characterization of Hydrazones, Pyrazoles and Pyrazolones from 8-Amino-6-Chloro Coumarine

Abstract Views :152 | PDF Views:0

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

Source

Asian Journal of Research in Chemistry, Vol 4, No 10 (2011), Pagination: 1621-1624

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 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.

Full Text

Username
Password
Remember me