ZnO nanoparticle as catalyst for efficient green one-pot synthesis of coumarins through Knoevenagel condensation

Journal of Chemical Sciences

D Girija¹  B Vinay Kumar¹  B Vijaya Kumar¹  Halehatty S Bhojya Naik1¹ 

[1] Department of Studies and Research in Industrial Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta 577 451, India$$

关键词: Knoevenagel condensation;    𝑜-hydroxy benzaldehyde;    zinc oxide (ZnO);    catalyst;    green chemistry.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Green chemistry protocols with the reusability of the nano particle as catalyst in the synthesis of coumarins is described. The zinc oxide (ZnO) nanoparticles functions as highly effective catalyst for the reactions of various 𝑜-hydroxy benzaldehydes with 1,3-dicarbonyl compounds under microwave and thermal conditions to afford the corresponding coumarins in moderate to good yields. The catalyst is inexpensive, stable, can be easily recycled and reused for several cycles with consistent activity.

【 授权许可】

Unknown