Document Type : Original Research Article

Authors

• Mohammad Reza Poor Heravi ¹
• Mohammad Amirloo ²

¹ Department of Chemistry, Payame Noor University, Abhar, Iran

² Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran

Abstract

A simple, clean, and environmentally benign three-component process for the synthesis of 2-amino-4Hchromenes using [mim]Cl, as an efficient catalyst under solvent-free conditions are described. A wide range of aromatic aldehydes easily undergoes condensations with 1-naphthol and malononitrile under solvent-free conditions to afford the desired products of good purity in excellent yields. Taking into account environmental and economical considerations, the protocol presented here has the merits of environmentally benign, simple operation, convenient work-up and good yields. Furthermore, the catalyst can be easily recovered and reused for at least five cycles without losing its activities.
A simple, clean, and environmentally benign three-component process for the synthesis of 2-amino-4Hchromenes using [mim]Cl, as an efficient catalyst under solvent-free conditions are described. A wide range of aromatic aldehydes easily undergoes condensations with 1-naphthol and malononitrile under solvent-free conditions to afford the desired products of good purity in excellent yields. Taking into account environmental and economical considerations, the protocol presented here has the merits of environmentally benign, simple operation, convenient work-up and good yields. Furthermore, the catalyst can be easily recovered and reused for at least five cycles without losing its activities.

Graphical Abstract

Keywords

• Chromene
• multicomponent reactions
• 1-methyl imidazoliumiodide [mim]Cl
• solvent-free conditions

Main Subjects

• Organic chemistry