Iron-porphyrin systems in living organisms play an essential role in various biochemical functions. Researchers have successfully mirrored the high rate-enhancing properties of iron porphyrins in enzymatic transformations towards their use as catalysts for synthetic chemical reactions in organic chemistry. Apart from being used as homogeneous catalysts, some studies have also explored iron-porphyrins incorporated into crosslinked organic polymer networks as heterogeneous catalysts. This work outlines the synthesis of a crosslinked polymer from a vinyl-functionalized iron-porphyrin-based monomer using Acyclic Diene Metathesis (ADMET) as a synthetic tool. The crosslinked material is further utilized as a heterogeneous catalyst for N-H bond insertion reactions of carbenes involving a series of aliphatic/aromatic amines and ethyl diazoacetate. This heterogeneous catalytic system displays high catalytic efficiency and is easy to separate, chemically tolerant, and recyclable.

Crosslinked iron-porphyrin based heterogeneous catalyst prepared by acyclic diene metathesis (ADMET): Application in C-N bond formation

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ACS Fall 2022

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