TY - JOUR AU - Pareek, Veena AU - Paliwal, Pradeep K. AU - Jain, Shubha PY - 2017/12/31 Y2 - 2024/03/29 TI - SYNTHESIS AND CHARACTERIZATION OF SOME BENZOTHIAZOLOPYRAZOLINE DERIVATIVES JF - International Journal of Engineering Technologies and Management Research JA - Int. J. Eng. Tech. Mgmt. Res. VL - 4 IS - 12 SE - Articles DO - 10.29121/ijetmr.v4.i12.2017.598 UR - https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/IJETMR17-SCIENCEFEST-16 SP - 94-97 AB - <p><strong><em>A new route for the synthesis of benzothiazolopyrazoline derivatives has been developed using various chalcone derivatives and 2-hydrazinobenzothiazole and piperidine catalyst. The product obtained in shorter reaction times and piperidine behaves as good catalyst for the cycloaddition rof chalcone and 2-hydrazinobenzothiazole. The reaction carried out in aqueous-ethanol medium at reflux condition and product obtained in high yield</em>.</strong></p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p> ER -