MIL ‐101(Fe) hexagonal microspindle as a highly efficient, reusable and versatile catalyst for benzo‐fused heterocyclic nucleus synthesis

MIL ‐101(Fe) hexagonal microspindle was prepared in one step and used as a novel heterogeneous catalyst for benzo‐fused heterocyclic nucleus synthesis. The heterogeneous catalyst was characterized. High efficiency, mild reaction conditions, easy work‐up and use of MOF‐based catalyst are importan t benefits of this methodology. A highly reusable, efficient and versatile MIL ‐101(Fe) catalyst was prepared and characterized using various techniques including Fourier transform infrared spectroscopy, X‐ray diffraction, field emission scanning electron microscopy and energy‐dispersive X‐ray spectroscopy. This heterogeneous catalyst demonstrated a promising activity for condensation/cyclization reactions of various aryl aldehydes with 1,2‐phenylenediamine or 2‐aminothiophenol. The corresponding benzo‐fused heterocyclic products were generated in good to excellent yields under mild conditions in the presence of the catalyst. In addition, the catalyst can b e easily separated and reused in eight consecutive runs with consistent catalytic activity.

Source: Applied Organometallic Chemistry - October 23, 2018 Category: Chemistry Authors: Ramin Karimian, Seyed Javad Davarpanah Tags: FULL PAPER Source Type: research