Preparation of N-Arylsulfonyl Imines from Sulfonamides and Aryl Aldehydes Using Magnesium Oxide as a Heterogeneous and Reusable Catalyst Under Solvent-Free Conditions

Abstract

An efficient solvent-free procedure for the preparation of N-arylsulfonyl imines from sulfonamides and aryl aldehydes in the presence of a catalytic amount of magnesium oxide and tetrabutylammonium bromide (TBAB) under microwave irradiation is described. The advantages of this method are good to high yields, short reaction times, low cost, and matching with green chemistry protocols.

Keywords:

• Aldehyde
• magnesium oxide
• microwave
• N-arylsulfonyl imine
• solvent-free
• sulfonamide

Acknowledgments

We thank the Persian Gulf University, the Payame Nour University, and the Shiraz University Research Councils for financial support of this work.

Notes

^a Isolated yield.

^aIsolated yield.