Title:Ultrasonic Activation of N-arylation of Amines with Aryl Halides
Catalysed by Iron (III)
Volume: 19
Issue: 8
Author(s): Khemais Said*Ridha Ben Salem
Affiliation:
- Organic Chemistry Laboratory (LR17/ES08), Department of Chemistry, Faculty of Sciences of Sfax, University of Sfax,
Sfax 3018, Tunisia
Keywords:
Ultrasonic activation, N-Aryl amines, iron catalyst, sonicated, triphenylamine, Buchwald-Hartwig.
Abstract: A practical and promising protocol was developed for N-arylations of various aromatic
amines. This protocol was carried out through the coupling reaction between various aryl halides and
phenylboronic acid using iron (III). The processes are efficiently promoted by the catalyst system involving
the environmentally benign iron (III) and the state PPh3. The advantages of this method are its
versatility, convenient operation and low cost, along with the yields, which are remarkably improved
under ultrasonic irradiation, and the high purity of the products obtained. The catalyst can be magnetic
recycled via an external magnet and reused several times without considerable loss of its catalytic
activity.