3D-network porous polymer based on calix[4]resorcinarenes as an efficient phase transfer catalyst in regioselective conversion of epoxides to azidohydrins

The present study, for the first time, describes the application of 3D‐network polymer based on calix[4]resorcinarene, as an efficient heterogeneous and phase transfer catalyst for regioselective azidolysis of epoxides. The surface morphology and the structure of this polymer were investigated by atomic force microscopy (AFM). This method offers several advantages including clean reactions, ease of work-up and reusability of the catalyst.

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► The catalyst shows porosity contains both hydrophilic and hydrophobic layers.
► The catalyst can be recovered and recycled.
► The water tolerant catalysts can be introduce as inexpensive and nonpolluting reagent.
► The catalyst is resistant and active for the reaction.
► The desired products were performed in an environmental area.