Abstract
A new amidoxime fibre-nickel catalyst (AOFs-Ni(O)) was synthesised by a coordination and reduction reaction. The X-ray diffraction patterns indicated that the Ni(ll) ions were reduced to Ni(0). The scanning electron microscope image showed that the Ni(0) particles which were reduced in situ had a diameter of about 300 nm. This catalyst demonstrated high activity in the Heck coupling reaction of aryl iodine and conjugated alkenes without the protection of an inert atmosphere.
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