Open Access Open Access  Restricted Access Subscription Access

NANOSILICA-SUPPORTED DUAL ACIDIC IONIC LIQUID AS A HETEROGENEOUS AND REUSABLE CATALYST FOR THE SYNTHESIS OF FLAVANONES UNDER SOLVENT-FREE CONDITIONS

Shahnaz Rostamizadeh, Negar Zekri, Leili Tahershamsi
Cover Image

Abstract


A nanosilica-supported dual acidic ionic liquid on the basis of 1-methyl-3-(4-sulfobutyl)imidazolium hydrogen sulfate was synthesized and used as an efficient, green, non-corrosive, non-toxic, heterogeneous, and reusable catalyst for the synthesis of some new and known substituted flavanones. The synthesis was done by the condensation of 2'-hydroxyacetophenone with different aldehydes and the subsequent cyclization of the resulting 2'-hydroxychalcone in the presence of the catalyst. High yields of the products, short reaction times, and solvent-free conditions characterize this new method.

How to Cite
Rostamizadeh, S.; Zekri, N.; Tahershamsi, L. Chem. Heterocycl. Compd. 2015, 51, 526. [Khim. Geterotsikl. Soedin. 2015, 51, 526.]

For this article in the English edition see DOI 10.1007/s10593-015-1728-z


Keywords


flavanone; nanosilica; dual acidic ionic liquid; reusable catalyst; solvent-free conditions

Full Text: PDF Supplementary File(s): Supporting information (3MB)


 

 

Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv