Synthesis and Characterization of Palladium Supported Amino Functionalized Magnetic-MOF-MIL-101 as an Efficient and Recoverable Catalyst for Mizoroki–Heck Cross-Coupling

Abstract

Magnetic particles were prepared by a hydrothermal method and then successively covered by Metal-Organic-Frameworks MIL-101-NH 2 with a high surface area. This was followed by deposition of Pd(OAc) 2 on Fe 3 O 4-NH 2 @MIL-101-NH 2 particles. The final catalyst was characterized with FT-IR, nitrogen physisorption, thermogravimetry (TGA), scanning electron microscopy (SEM) combined with energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), wide-angle X-ray diffraction spectroscopy (XRD) and X-ray photoelectron spectroscopy (XPS). The prepared magnetic catalyst was effectively used in the Heck coupling reaction in the presence of an inorganic base. The reaction parameters such as the base type, amounts of catalyst and solvents, temperature, and substrates ratios were optimized. The catalyst was then magnetically separated, washed, and reused 7 times without losing significantly catalytic activity.

A novel composite of ionic liquid-containing polymer and metal–organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation

“…2 . FTIR spectrum of MOF-Fe is in good accordance with the previous reports 40 and exhibits the absorbance bands at 1359 cm −1 (–C–N functionality), 1571 and 1425 cm −1 (symmetrical and asymmetrical stretching modes of the O–C=O) and 3360 cm −1 , (asymmetrical and symmetrical stretching modes of the –NH 2 group). The distinctive absorbance bands in the FTIR spectrum of PIL-AM are the bands at 3369 cm −1 that is indicative of –NH 2 functionality of AM moiety, 2925 cm −1 that is representative of –CH 2 group and 1665 cm −1 that can be assigned to –C=O functionality of AM and –C = N functionality of imidazolium ring.…”

A Novel Composite of Ionic Liquid-containing Polymer and Metal-organic Framework as an Efficient Catalyst for Ultrasonic-assisted Knoevenagel Condensation

“…Characterization of MOF-PIL-AM MOF-Fe, PIL-AM and MOF-PIL-AM samples were characterized with FTIR spectroscopy and their FTIR spectra were compared, Figure 2. FTIR spectrum of MOF-Fe is in good accordance with the previous reports 29 and exhibits the absorbance bands at 1359 cm -¹ (-C-N functionality), 1581 and 1444 cm -¹ (symmetrical and asymmetrical stretching modes of the O-C=O) and 3360 cm -¹, (asymmetrical and symmetrical stretching modes of the -NH 2 group). The distinctive absorbance bands in the FTIR spectrum of PIL-AM are the bands at 3369 cm -¹ that is indicative of -NH 2 functionality, 2925 cm -¹ that is representative of -CH 2 group and 1665 cm -¹ that can be assigned to -C=O functionality of AM and -C=N functionality of imidazolium ring.…”

Palladium incorporated MIL-101(Cr): a heterogeneous and reusable catalyst for the C–H functionalization of unactivated arenes

“…The TGA thermogram of MIL-101(Cr)-NH 2 ( I ) illustrates that it is stable up to 250 °C, which is almost consistent with the literature. 17 The thermal stability of catalyst ( IV ) is similar to that of the parent MIL-101(Cr)-NH 2 ( I ), even after PSM. Therefore, it can be concluded that the catalyst ( IV ) can be used within this temperature range.…”