Simultaneous application of ultrasonic irradiation and immobilized ionic liquid onto the SBA-15 nanoreactor (US/[MPIm]Cl@SBA-15): A robust, recyclable, and useful combined catalytic system for selective and waste-free Kabachnik Fields reaction

Simultaneous application of the ultrasonic irradiation (US) and immobilized ionic liquid (IL@SBA-15) is used as an alternative to conventional catalysts in the Kabachnik-Fields reaction of an amine, aldehyde with phosphite leading to the formation of (alpha-aminoalkyl)phosphonate. The reaction time is reduced drastically and the reaction is progressed in an environmentally friendly way. The yields are around 93-96%. (C) 2014 Elsevier B.V. All rights reserved.