Simultaneously application of SBA-15 sulfonic acid nanoreactor and ultrasonic irradiation as a very useful novel combined catalytic system: An ultra-fast, selective, reusable and waste-free green approach

Rostamnia, Sadegh; Xin, Hongchuan; Liu, Xiao; Lamei, Kamran

doi:10.1016/j.molcata.2013.03.017

Cited by 60 publications

(25 citation statements)

References 71 publications

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“…Interestingly, it was observed that the catalytic activity and selectivity for IRMOF-3 were higher than that for porous SBA-15/SO 3 H, which gave rise to a mixture of a-aminophosphonate and a-hydroxyphosphonate. [81] 4.13. Condensation/olefin hydrogenation/nitro reduction The potential of MOFs as multifunctional catalyst stems from the possibility to contain simultaneously orthogonal or even antagonistic active sites either at the metal nodes, organic linkers, or empty space.…”

Section: Condensation/additionmentioning

confidence: 99%

Cascade Reactions Catalyzed by Metal Organic Frameworks

2014

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Cascade or tandem reactions where two or more individual reactions are carried out in one pot constitute a clear example of process intensification, targeting the maximization of spatial and temporal productivity with mobilization of minimum resources. In the case of catalytic reactions, cascade processes require bi-/multifunctional catalysts that contain different classes of active sites. Herein, we show that the features and properties of metal-organic frameworks (MOFs) make these solids very appropriate materials for the development of catalysts for cascade reactions. Due to composition and structure, MOFs can incorporate different types of sites at the metal nodes, organic linkers, or at the empty internal pores, allowing the flexible design and synthesis of multifunctional catalysts. After some introductory sections on the relevance of cascade reactions from the point of view of competitiveness, sustainability, and environmental friendliness, the main part of the text provides a comprehensive review of the literature reporting the use of MOFs as heterogeneous catalysts for cascade reactions including those that combine in different ways acid/base, oxidation/reduction, and metal-organic centers. The final section summarizes the current state of the art, indicating that the development of a first commercial synthesis of a high-added-value fine chemical will be a crucial milestone in this area.

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Section: Condensation/additionmentioning

confidence: 99%

Cascade Reactions Catalyzed by Metal Organic Frameworks

2014

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“…[220]. [224]. The synthesis of these products has been also achieved by a similar procedure using SBA-Pr-SO 3 H under solvent-free conditions [225].…”

Section: Application Of Sba-pr-so 3 H In Three-component Reactionsmentioning

confidence: 99%

“…Replacing dimedone with malononitrile or ethyl cyanoacetate in this reaction was also investigated [226]. The effectiveness of combined ultrasound/nanoreactor catalytically system as an ultra-fast, waste-free and highly reusable method for the generation of α-aminophosphonates 132 via a three-component coupling has been also explored (Scheme 44) [224].…”

Section: Application Of Sba-pr-so 3 H In Three-component Reactionsmentioning

confidence: 99%

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Sulfonic acid-functionalized mesoporous silica (SBA-Pr-SO3H) as solid acid catalyst in organic reactions

Ziarani

Lashgari

Badiei

2015

Journal of Molecular Catalysis A: Chemical

150

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“…1 [19]. Due to the above listed excellent therapeutic applications of the 1,4-dihydropyridine derivatives, synthetic chemists have explored several protocols for the synthesis of them using different reaction conditions and varied catalytic systems as follows: Yb(OTf) 3 [20], [pyridine-SO 3 H]Cl [21], [Dsim]HSO 4 [22], Triton X-100 in water [23], TiO 2 NPs [24], SnO 2 NPs [25], silica-bonded imidazolium-sulfonic acid chloride [26], [2-MPyH]OTf [27], SBA-15/SO 3 H [28], Ninanoparticles [29], IL-HSO 4 @SBA-15 [30], Baker's yeast [31], Lproline [32], and [bmim]BF 4 [33]. Although the reported methods offer several merits and provide improvements for the synthesis of the target molecules, many of these protocols need longer reaction times, hard reaction conditions, using unsafe organic solvents, and drastic workups.…”

Section: Introductionmentioning

confidence: 99%

Novel magnetic nanoparticles with ionic liquid tags as a reusable catalyst in the synthesis of polyhydroquinolines

et al. 2016

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In this paper, we have introduced {Fe3O4@SiO2@(CH2)3Im}C(NO2)3 as a novel and heterogeneous reusable catalyst for the four component preparation of the polyhydroquinoline derivatives under mild and eco-friendly reaction conditions. The structural confirmation of the novel heterogeneous reusable promoter was fully made using appropriate technical skills such as FT-IR, X-ray diffraction patterns (XRD), Field emission scanning electron microscopy (FESEM), Energy-dispersive spectroscopy (EDS) elemental mapping analysis, High Resolution transmission electron microscopy (HRTEM), thermogravimetry (TG), derivative thermal gravimetric (DTG), differential thermal (DTA) and vibrating sample magnetometer (VSM) analysis. The presented nano magnetic heterogeneous catalyst was successfully applied for the synthesis of the polyhydroquinoline derivatives via a four component condensation of a good range arylaldehydes, dimedone, ethyl acetoacetate or methyl acetoacetate as β-ketoester, and ammonium acetate as nitrogen source under solvent free conditions. Also, the experimental evidence has demonstrated that the {Fe3O4@SiO2@(CH2)3Im}C(NO2)3 could act as a nano magnetically recoverable and reusable catalyst without any meaningful drop in the yield and the reaction time at least for eight times.

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Simultaneously application of SBA-15 sulfonic acid nanoreactor and ultrasonic irradiation as a very useful novel combined catalytic system: An ultra-fast, selective, reusable and waste-free green approach

Cited by 60 publications

References 71 publications

Cascade Reactions Catalyzed by Metal Organic Frameworks

Cascade Reactions Catalyzed by Metal Organic Frameworks

Sulfonic acid-functionalized mesoporous silica (SBA-Pr-SO3H) as solid acid catalyst in organic reactions

Novel magnetic nanoparticles with ionic liquid tags as a reusable catalyst in the synthesis of polyhydroquinolines

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