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New metal complexes supported on Fe 3 O 4 magnetic nanoparticles as recoverable catalysts for selective oxidation of sulfides to sulfoxides
Author(s) -
Hajjami Maryam,
Kolivand Somaye
Publication year - 2016
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3429
Subject(s) - chemistry , isatin , catalysis , hydrogen peroxide , nanoparticle , inorganic chemistry , magnetic nanoparticles , metal , imine , reusability , nuclear chemistry , chemical engineering , organic chemistry , software , computer science , programming language , engineering
Fe 3 O 4 nanoparticles were coated with aminopropyltriethoxysilane and subsequently reacted with isatin to obtain imine‐bonded Fe 3 O 4 nanoparticles. The addition of ZrOCl 2 ⋅8H 2 O or CuCl 2 led to the formation of complexes of Zr(IV)/isatin@Fe 3 O 4 or Cu (II)/isatin@Fe 3 O 4 as new magnetically separable catalysts. The synthesized catalysts were characterized using various techniques. These catalysts are shown to be efficient for chemo‐selective oxidation of sulfides to sulfoxides using hydrogen peroxide as oxidative agent. This system has many advantages, such as excellent level of reusability of magnetic catalysts, high yields, simplicity of separation of catalysts using an external magnet, environmental benignity and ease of handling. Copyright © 2016 John Wiley & Sons, Ltd.