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was not significantly altered after five repeat runs.
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The Schiff base ligand and iron complex were screened
in vitro for their microbial activity against two bacterial
species using the well diffusion method. These compounds
were found to exhibit considerable activity against Gram-
positive (B. subtilis) and Gram-negative (E. coli) bacteria.
The results are summarized in Table S6.
Conclusions
In summary, we have successfully synthesized a polymer-
anchored iron(III)–ferrocene Schiff base complex. The
catalyst shows high activity for the oxidation of both sat-
urated and unsaturated organic substrates, alcohols, and
sulfides. The immobilized PS-iron(III)–ferrocene catalyst
is slightly more active than the homogeneous PS-ferrocene
analogue. The heterogeneous complex selectively provides
aldehydes and ketones from alkanes, alkenes and alcohols,
and sulfoxides from sulfides. The heterogeneous catalyst
shows only small loss of activity in the recycling experi-
ments. Leaching tests indicate that the catalyst is truly
heterogeneous in nature. We hope that the present catalytic
system would be useful for the synthesis of industrially
important organic compounds.
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Acknowledgments We acknowledge Council of Scientific and
Industrial Research (CSIR) New Delhi, India, for funding. ASR
acknowledges CSIR, New Delhi, India, for his senior research
fellowship.
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