Design, synthesis, and identification of ionic liquid grafted on magnetic biochar dots and investigation of its activity for the synthesis of dihydrobenzo[a]xanthene-11-one derivatives in solvent-free conditions

Seyedi, Neda; Pouramirib, Behjat; Abdinasab, Salimeh; Zahedifar, Mahboobeh

doi:10.22036/cr.2025.451582.1244

Design, synthesis, and identification of ionic liquid grafted on magnetic biochar dots and investigation of its activity for the synthesis of dihydrobenzo[a]xanthene-11-one derivatives in solvent-free conditions

Document Type : Original Article

Authors

Neda Seyedi ¹

Behjat Pouramirib ²

Salimeh Abdinasab ¹

Mahboobeh Zahedifar ¹

¹ Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, Iran

² Department of Chemistry, Qom University of Technology, Qom, Iran

10.22036/cr.2025.451582.1244

Abstract

In this research, triethylammonium ionic liquid grafted on magnetic biochar dots (magnetic BCDs/ILs) was developed and investigated as a novel and effective catalyst for the preparation of various xanthene derivatives through the multicomponent reaction of dimedone, β-naphthol, and aromatic aldehydes. To determine the structure and characteristics of the prepared catalyst, FT-IR, XRD, SEM, and TEM spectroscopic methods were employed. Spectroscopic results data confirmed the successful synthesis of the desired catalyst. Furthermore, the synthesized xanthene derivatives were identified using different spectroscopic methods such as nuclear magnetic resonance spectroscopy (NMR) and Fourier transform infrared spectroscopy (FT-IR). The spectroscopic data well agreed with the structure of the corresponding compounds. The experiments showed that the presented method could be used as a suitable method for the synthesis of various xanthene derivatives due to the short reaction time, absence of organic solvents, high yield, of products in the mild reaction conditions, and easy separation of the products.

Keywords

dihydrobenzo[a]xanthene-11-one

multicomponent reactions

ionic liquid

biochar dots

Subjects