Research Journal of Chemistry

and Environment


Indexed in SCOPUS, Chemical Abstracts, UGC, NAAS, Indian Citation Index etc.



Please donate Rs.7000 per plant to WRA for our plantation drive to help create a better environment.



WRA Plantation - 50,000 trees grown on rocks and stones on barren rocky hillock "Keshar Parvat".






Deep eutectic solvent mediated synthesis of pyrazolo[3,4-b]- and pyrimido[4,5-b]quinolines

Jadhav Siddheshwar D., Kashid Vitthalrao S., Patil Dattatray V. and Yedage Dattatray B.

Res. J. Chem. Environ.; Vol. 29(9); 18-24; doi: https://doi.org/10.25303/299rjce018024; (2025)

Abstract
Herein, this research explores the versatility and efficiency of choline chloride based deep eutectic solvent (DES) as a catalyst as well as reaction media for the cyclocondensation of pyrazolo[3,4-b]quinolines and pyrimido[4,5-b]quinolines. The eutectic solvent employed for this protocol is recyclable, non-toxic, non-volatile and biodegradable with high chemical and thermal stability, making it ideal for the sustainable synthesis of quinoline derivatives. These protocols are simple, straightforward, highly scalable and aligned with green chemistry principles. Additionally, these methods are eco-friendly, economical and outperform existing methodologies in operational efficiency.