Selective Oxidation of Hydrocarbons and Alcohols Using Phen-MCM-41 as an Efficient Co-Catalyst in Combination with NHPI-Based Nano-Magnetic Catalyst

Hosseinzadeh, Rahman; Mavvaji, Mohammad; Tajbakhsh, Mahmood; Lasemi, Zahra; Aghili, Nora

doi:10.1080/00304948.2020.1716434

Cited by 10 publications

(4 citation statements)

References 36 publications

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“…Hosseinzadeh et al [175] used 1,10-phenanthroline immobilized MCM-41 (phen-MCM-41) as co-catalyst with NHPI@Fe 3 O 4 @SiO 2 for metal-free oxidation of hydrocarbons and alcohols (Figure 114). The co-catalyst can be recovered and reused up to 5 times with negligible loss of activity.…”

Section: Oxidationmentioning

confidence: 99%

Functionalized MCM‐41: Versatile Catalysts for Organic Transformations

et al. 2022

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Functionalized MCM-41 constitute a group of potent hybrid catalysts for organic reactions. Their pore size is large enough to house large substrate molecules, the large bulk of surface silanol groups helps in introduction of a variety of functionalities required for the catalytic action. The current review emphasizes the broad methodology for the synthesis of these catalysts, effect of functionalization on reaction parameters, stability, efficiency, selectivity, reusability along with limitations of these catalysts to organic transformations, from a green chemistry standpoint. Some selected mechanisms of catalytic action are also highlighted. The review demonstrates that surface functionalized MCM-41 constitute innovative and need based catalyst systems that catalyze reactions like Sonogashira, Suzuki, Heck, Friedel Craft reaction, Aldol and Knoevenagel condensation etc. Several other reactions like oxidation, reduction, dehydration, esterification, epoxidation, CÀ S, CÀ N, CÀ O and SÀ S coupling as well as multicomponent synthesis of bioactive heterocycles have also been reported. It is hoped that this review will improve the understanding of scientific community on how these versatile catalysts operate and will provide opportunities to further enhance their utility for chemical industry.

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Section: Oxidationmentioning

confidence: 99%

Functionalized MCM‐41: Versatile Catalysts for Organic Transformations

et al. 2022

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“…In our previous studies, the extraordinary performance of different kinds of HPAs catalysts in several organic reactions was studied 28 – 36 . Also, the application of nanoparticles 37 – 41 and particularly magnetic Fe 3 O 4 42 – 47 , as efficient and easily separable catalysts, was demonstrated in various organic reactions. In this work, a novel magnetically recoverable catalyst containing immobilized phosphotungstic acid (H 3 PW 12 O 40 , HPW), as a Keggin type HPA, cyanoguanidine modified magnetic chitosan was designed.…”

Section: Introductionmentioning

confidence: 99%

Heteropolyacid coupled with cyanoguanidine decorated magnetic chitosan as an efficient catalyst for the synthesis of pyranochromene derivatives

Rahimzadeh

Tajbakhsh

Daraie

et al. 2022

Sci Rep

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In this study, a novel nanocatalyst was successfully prepared by heteropolyacid immobilization of magnetic chitosan-cyanoguanidine composite and fully characterized by different analysis methods, including FTIR, XRD, TGA, SEM, and EDS. The catalytic activity of fabricated composite was examined in a one-pot three-component reaction, involving the diverse active methylene compounds, various aryl aldehydes, and malononitrile in water. The results revealed the efficient catalytic performance of composite, while all reactions proceeded smoothly and led to the formation of the corresponding pyranochromene derivatives in high to excellent yields.

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“…Intensive work has also been carried out on catalysts for oxidation processes with oxygen, characterized not only by high selectivity and activity but also by the ease of isolation from post-reaction mixtures, which is particularly important during process commercialization [ 9 ]. Recent reports are concerned with the combination of NHPI with heterogeneous catalysts based on the mesoporous aluminosilicates on which phenanthroline (phen-MCM-41) had been immobilized [ 10 ]. The authors of this reference used a catalytic system that consisted of NHPI immobilized on the surface of silica with magnetic properties (Fe 3 O 4 @ NHPI), phen-MCM-41, and Br 2 to oxidize, with acetonitrile as solvent, various alkyl aromatic hydrocarbons, including ethylbenzene.…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Salts of Carboxylated Multiwalled Carbon Nanotubes in Combination with N-hydroxyphthalimide as Catalytic Systems for Hydrocarbon Oxidation

Peckh

Orlińska

2021

Materials

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In this study, the transition metal (Co (II), Cu (II), and Mn (II)) salts of carboxylated carbon nanotubes were synthesized and characterized (the determined metal contents were in the range of 0.89–1.16%). The catalytic activity and the possibility for recovery and reuse of the obtained heterogeneous salts were then studied in the solvent-free oxidation of ethylbenzene with oxygen. The oxidation processes were carried out at 80 °C under atmospheric pressure in the presence of N-hydroxyphthalimide. The highest conversion of ethylbenzene, 27%, was obtained with a system consisting of the Cu (II) salt of the carboxylated carbon nanotubes, N-hydroxyphthalimide, and the azo initiator AIBN.

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Selective Oxidation of Hydrocarbons and Alcohols Using Phen-MCM-41 as an Efficient Co-Catalyst in Combination with NHPI-Based Nano-Magnetic Catalyst

Cited by 10 publications

References 36 publications

Functionalized MCM‐41: Versatile Catalysts for Organic Transformations

Functionalized MCM‐41: Versatile Catalysts for Organic Transformations

Heteropolyacid coupled with cyanoguanidine decorated magnetic chitosan as an efficient catalyst for the synthesis of pyranochromene derivatives

Transition Metal Salts of Carboxylated Multiwalled Carbon Nanotubes in Combination with N-hydroxyphthalimide as Catalytic Systems for Hydrocarbon Oxidation

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