alexa Abstract | Synthesis of pyrano[2,3-d]pyridine, pyrazolo[3,4-b]pyridine derivatives by microwave irradiation and study of their insecticidal activity

Journal of Chemical and Pharmaceutical Research
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Original Articles Open Access


5-Amino pyrazole 4[1] was transformed to pyrazolo pyridine derivatives 7 by microwave irradiation with diethyl malonate. Alternatively it was synthesized by two step process through open chain derivative 6 then it was transformed to 7 by refluxing in biphenyl ether. N- Alkylation reaction on 7 was studied by ethyl bromo acetate and also by microwave irradiation. The pyran ring was annulated on 7 by condensing it with by benzilidine malononitrile. All synthesized compounds were characterized by spectral and analytical methods. It was noted that synthesis and alkylation of 7 was performed in microwave and it is faster than conventional method. The biological activity of compounds 7, 9 and 11 were studied.

To read the full article Peer-reviewed Article PDF image

Author(s): Sunita A Chaudhari Patil Sandeep R Patil Vasant M Patil Sambhaji V PatilMadhukar N Jachak and Ashok Desai


Microwave irradiation technique, green approach, 5-amino pyrazole, pyranofused hetrocycles, ethyl bromo acetate, benzilidine malononitrile, Chemical synthesis

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us