Work

Natural asphalt oxide-grafted carboxylic acid: a sustainable heterogeneous catalyst for synthesis of pyrano[2,3- c ]pyrazoles and 2-amino-3-cyanopyridines in water

Year: 2025

Type: article

Abstract: ]pyrazole (90-97% yield in 20-50 min) and 2-amino-3-cyanopyridine (90-97% yield in 30-50 min). Furthermore, due to the use of water as the solvent, it is easy to separate and reuse, operational simplicity, and environmentally friendly. The catalyst exhibits exceptional recyclability and retains its activity for at least five cycles, outperforming currently available catalysts in terms of yield, reaction conditions, and overall efficiency.

Source: RSC Advances

DOI: 10.1039/d5ra03786g

Authors: Shabnam Rashidi, Mohammad Soleiman-Beigi

Institution: Ilam University

Language: English

Topic: Multicomponent Synthesis of Heterocycles

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $1,042