POSS-Based Covalent Networks: Supporting and Stabilizing Pd for Heck Reaction in Aqueous Media
ether, dried at 50°C for 30 min, and used in the next reac-
tion. There was no significant change in the product yield
after six catalysts recycling, as shown in Fig. 8 with almost
complete conversion of the reactants to the desired Heck
product.
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Palladium NPs were dispersed in an organic–inorganic
composite based on IC-POSS and poly (AAm-co-HEMA)
as a novel catalytic system for heterogeneous Heck reaction
between aryl halides and olefins in aqueous media. FT-IR,
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By using the nano-catalyst more than six times, the prod-
uct yield decreased. This fact can be attributed to changes
in the morphology of reused catalyst. The poly (AAm-co-
HEMA)@TAP-POSS5@Pd-NPsnanocatalyst system pro-
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Acknowledgements Funding support was provided by the Research
Council of University of Tabriz (N.A.) and University of Maragheh
(M.A.).
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