Sulfonated polystyrene/montmorillonite nanocomposite as a new and efficient catalyst for the solvent-free Mannich reaction

Authors

• Ahmad Reza Massah ¹
• Roozbeh Javad Kalbasi ^{1, 2}
• Mitra Toghyani ¹

1. Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Isfahan, 86145-311, Iran.
2. Razi Chemistry Research Center, Shahreza Branch, Islamic Azad University Shahreza, Isfahan, 86145-311, Iran

Abstract

Sulfonated polystyrene/montmorillonite nanocomposite (OMMT/PS-SO₃H) was prepared and used as a novel, efficient and inexpensive heterogeneous acid catalyst in the one-pot reaction three-component Mannich reaction of ketones, aromatic aldehydes and amines under solvent-free conditions. The catalyst was characterized by XRD, SEM, TG, BET and FT-IR techniques. This method has advantages of high yield, moderate to excellent diasteroselectivity, mild condition, catalyst recyclability, and simple work-up procedure.

Keywords

• Solvent-free
• Mannich reaction
• β-amino carbonyl compound
• OMMT/PS-SO3H
• Nano composite