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SCHEME 3 Proposed mechanism for
synthesis of salicylaldehydes by
Fe3O4@SiO2 ~ urea/MgBr2
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Fe3O4@SiO2 ~ urea/MgBr2 NPs were developed as a cata-
lyst for oxidation of benzylic alcohols to aromatic alde-
hydes and ketones, and ortho‐formylation of phenols to
salicylaldehydes. The magnetically recoverable catalyst
was found to be capable of repeated reuse without signifi-
cant loss of activity.
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ACKNOWLEDGEMENTS
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The authors gratefully acknowledge financial support
from the Iran National Science Foundation (INSF) and
the Research Council of Razi University.
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ORCID
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