Epoxidation of olefins catalyzed by a molybdenum-Schiff base complex anchored in the pores of SBA-15

Bagherzadeh, Mojtaba; Zare, Maryam; Amini, Mojtaba; Salemnoush, Taghi; Akbayrak, Serdar

doi:10.1016/j.molcata.2014.09.004

Cited by 36 publications

(12 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Not only the functionalized mesoporous silica can be employed as catalysts, they can be exploited as nanoreactors for incorporation of another catalytic species such as nanoparticles, [76][77][78][79] complexes 80,81 for developing state of the art encapsulated catalysts.…”

Section: -75mentioning

confidence: 99%

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Sadjadi

Heravi

2017

RSC Adv.

View full text Add to dashboard Cite

The cavities of SBA mesoporous silica materials can be used as nanoreactors for embedding catalytic species such as nanoparticles, complexes and heteropolyacids etc. The encapsulated catalysts are renowned as superior catalytic systems regarding their catalytic activity, selectivity and reusability as well as suppressed leaching. An efficient method to improve the encapsulation of these catalysts, is in creating anchors for capturing catalytic species. It has been performed by functionalization of the surface of SBA mesoporous silica materials with various groups including sulfur, phosphorus and aminebased functional groups. The aim of this article is to review the recent advances (2014)(2015)(2016)(2017) in the field of the utility of functionalized SBA for developing encapsulated catalysts. In most cases the reusability of the catalyst and the leaching of the catalytic active species were discussed to disclose the role of functionalized SBA in heterogenizing and suppressing the leaching. Moreover, to show the superiority of these developed encapsulated catalysts, with a couple of examples we compared their catalytic activities with those of the conventional ones.

show abstract

Section: -75mentioning

confidence: 99%

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Sadjadi

Heravi

2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Mo‐based Catalystsmentioning

confidence: 99%

“…Leaching tests show that the immobilized species are the active species for the epoxidation reaction, rather than the leaching of active species into solution. In the same year, Bagherzadeh et al [90] introduced MoO 2 (acac) 2 into a SBA-15 functionalized with Schiff base ligands (Table S3, #13-24). They observed that the olefin size, the intrinsic reactivity of the double bond and the accessibility to the active sites are the major factors limiting the reaction rate.…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Yan

Liu

Wang

et al. 2019

The Chemical Record

View full text Add to dashboard Cite

Molybdenum complexes are versatile and efficient for liquid phase olefin epoxidation reactions. Rational design of catalysts is critical to achieve high atom efficiency during epoxidation processes. Although liquid phase epoxidation has been a popular topic for decades, three key issues, (a) rational control of morphology of molybdenum nanoparticles, (b) manipulating metal‐support interaction and (c) altering electronic configuration at molybdenum center remains unsolved in this area. Therefore, in this paper, we have critically revised recent research progress on heterogeneous molybdenum catalysts for facile liquid phase olefin epoxidation in terms of catalyst synthesis, surface characterization, catalytic performance and structure‐function relationship. Furthermore, plausible reaction mechanisms will be systematically discussed with the aim to provide insights into fundamental understanding on novel epoxidation chemistry.

show abstract

“…In the front of development of alkene epoxidation catalysts, so far few studies have been reported for covalently grafting of Schiff base metal-complexes onto mesoporous MCM-41 [20][21][22][23][24][25][26][27][28], SBA-15 [29,30] and CMK-3 [31]. In these cases, the main adopted synthetic strategy involved Schiff base immobilization via reaction with the surface modified silicon-based materials [20][21][22][23][24][27][28][29][30]; alternatively, the entire Schiff base metal complex was tethered via axial ligation to H2N-modified MCM-41 [25][26] or -OOC-modified CMK-3 [31].…”

Section: Introductionmentioning

confidence: 99%

“…In these cases, the main adopted synthetic strategy involved Schiff base immobilization via reaction with the surface modified silicon-based materials [20][21][22][23][24][27][28][29][30]; alternatively, the entire Schiff base metal complex was tethered via axial ligation to H2N-modified MCM-41 [25][26] or -OOC-modified CMK-3 [31]. Among these studies, there are three examples which report H2O2 activation [20,25,31] and three catalytic systems, i.e.…”

Section: Introductionmentioning

confidence: 99%

Mn-Schiff base modified MCM-41, SBA-15 and CMK-3 NMs as single-site heterogeneous catalysts: Alkene epoxidation with H2O2 incorporation

Mavrogiorgou

Baikousi

Costas

et al. 2016

Journal of Molecular Catalysis A: Chemical

View full text Add to dashboard Cite

Epoxidation of olefins catalyzed by a molybdenum-Schiff base complex anchored in the pores of SBA-15

Cited by 36 publications

References 48 publications

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Current advances in the utility of functionalized SBA mesoporous silica for developing encapsulated nanocatalysts: state of the art

Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Mn-Schiff base modified MCM-41, SBA-15 and CMK-3 NMs as single-site heterogeneous catalysts: Alkene epoxidation with H2O2 incorporation

Contact Info

Product

Resources

About