ChemInform Abstract: Synthesis of New 3‐Cyanocoumarins with C‐6 Azo Function Using Ultrasound and Grinding Techniques in the Presence of Nano Fe₃O₄.

Abstract

3O4. -Several substituted C-6 azo-functionalized 3-cyanocoumarins are either synthesized from azo aldehydes and malononitrile in the presence of reusable magnetic nano Fe 3O4 or by diazotization of 3-cyanocoumarins. The influence of ultrasound irradiation and grinding on the reaction yield is investigated. -(NIKPASSAND*, M.; FEKRI, L.; CHANGIZ, N.; IMANI, F.; Lett. Org. Chem. 11 (2014) 1, 29-34, http://dx.doi.org/10.2174/157017861101140113160517 ; Dep. Chem., Islamic Azad Univ., Rasht, Iran; Eng.) -F. Berndt 24-153