An efficient, green and ecofriendly procedure has been developed using Fe3O4@SiO2/Schiff base of
Cu(II) as a magnetic catalyst for N-arylation of sulfonamides with arylboronic acids in water. The operational
simplicity, practicability and applicability of this protocol to various substrates make it an interesting
alternative to previous procedures. The present approach offers several advantages such as simplicity of
operation, high yields, short reaction times, easy work-up, a cleaner reaction and ease of recovery and
reusability of the catalyst using a magnetic field. Also, the nanocatalyst can be easily recovered by the
application of a magnetic field and reused for the next reactions at least 7 times without distinct deterioration
in catalytic activity.
کلید واژگان :
Magnetic nanocatalyst; Core-shell; N-Arylation; Sulfonamide; Magnetic separation
