Comparative study on the catalytic properties of amino-functionalized silica materials for the transesterification of dimethyl oxalate with phenol

Liu, Yan; Zhao, Guoming; Zhu, Wanchun; Wang, Jing; Liu, Gang; Zhang, Wenxiang; Jia, Mingjun

doi:10.1590/s0103-50532010001200012

Cited by 9 publications

(3 citation statements)

References 37 publications

(54 reference statements)

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“…Therefore, the basic strength could be ordered N3‐ZY‐30‐3 > N2‐ZY‐30‐3 > N1‐ZY‐30‐3. The CO 2 ‐TPD results suggest that the alkyl chain length and number of amino groups correlated with the basic strength, where the basic strength was greater with increasing alkyl chain length and number of amino groups in the amine molecule, as reported previously . According to the Lewis base principle, the organic base, containing electron‐donating groups, can stabilize the cation and increase the basic strength.…”

Section: Resultssupporting

confidence: 77%

Inorganic‐organic hybrid material based on amine‐functionalized zeolite Y: A study of catalytic activity in transesterification

et al. 2016

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Three different structures of amine compound, 3‐aminopropyl trimethoxysilane (N1), N‐[3‐(trimethoxysilyl)propyl] ethylenediamine (N2), and N‐[3‐(trimethoxysilyl)propyl] diethylenetriamine (N3), functionalized on zeolite Y, were used to enhance catalyst lifetime in the transesterification reaction. The presence of amine compound was confirmed by FTIR. Moreover, the grafting percentage of amine on zeolite Y was also considered, since it affected the basicity and basic strength of the catalyst. The catalytic activity testing for transesterification of glyceryl tributyrate (GTB) and methanol was carried out in an autoclave reactor at reaction conditions of 30:1 molar ratio of methanol to GTB and a catalyst loading level of 0.35 g/g (35 mass% of GTB). The highest methyl butyrate production per active site was obtained by N3, due to its having the highest basic strength. The highest methyl butyrate yield was given by N1, due to its having the highest amino group concentration (basicity). Therefore, the catalytic activity, in terms of methyl butyrate yield and methyl butyrate production per active site, was affected by both basic strength and basicity. The reusability of the catalysts showed that the methyl butyrate yield slightly declined to ∼13.8 % yield after four cycles, but the methyl butyrate production per active site remained constant across four cycles.

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Section: Resultssupporting

confidence: 77%

Inorganic‐organic hybrid material based on amine‐functionalized zeolite Y: A study of catalytic activity in transesterification

et al. 2016

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“…The catalysts have turnover frequencies of 0.9, 6.75 and 1.45 h −1 for NH 2 -MTS, NN-MTS and DN-MTS catalysts respectively. The yields are relatively low compared to some reported esterification reaction (yields of above 40%) using other amine-functionalized ordered mesoporous silica, however different esterification substrates were used [38,39].…”

Section: Amine Functionalization Of Co-mts For the Transesterificatiomentioning

confidence: 90%

Mesoporous Materials Prepared Using Cashew Nut Shell Liquid and Castor Oil as Surfactants

Mgaya¹,

Mubofu²

2019

Mesoporous Materials - Properties and Applications

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Preparation of useful materials using renewable resources, which are not in competition with food production is of particular importance in the current efforts to replace non-renewable resources. One example of a potential renewable resource, which is attracting the attention of researchers in the preparation of useful materials is cashew nut shell liquid (CNSL). CNSL which is a by-product of cashew processing factories, is a mixture of four potential compounds, namely anacardic acid, cardanol, cardol and 2-methyl cardol. Among other potential applications, cashew nut shell liquid is a good template source for preparation of mesoporous materials. Heterogeneous catalysts prepared using CNSL templates are more efficient than those prepared using the commercially available templates. The pore sizes of mesoporous materials prepared using CNSL templates are large (up to 25 nm) enough to immobilize enzymes. Another renewable resource; castor oil, has also been reported to be a good template source for preparation of mesoporous materials. This chapter therefore is aimed at describing in detail the preparation, characterization and applications of mesoporous materials templated by cashew nut shell liquid and castor oil.

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“…Along with periodic mesoporous silica, the development of chiral PMOs by utilizing chiral bridging organosilane ligands has received much attention as they have found numerous applications in catalysis and chromatography . In particular, organic‐ functionalized molecular sieves have been used in transesterifications, Knoevenagel reactions, epoxidation of cyclooctene, cyano‐ethoxy carbonylation, flavanone synthesis, and aldol condensation . They have also been employed as metal ion (Fe 2+ and Co 3+ ) scavengers and the support for the noble metals (e. g., Rh) .…”

Section: Applications Of Organo‐functionalized Porous Materialsmentioning

confidence: 99%

Recent Advances in the Preparation and Applications of Organo‐functionalized Porous Materials

Yadav

Baskaran

Anjali

et al. 2020

Chemistry An Asian Journal

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Organo‐functionalized materials with porous structure offer unique adsorption, catalytic and sensing properties. These unique properties make them available for various applications, including catalysis, CO2 capture and utilization, and drug delivery. The properties and the performance of these unique materials can be altered with suitable modifications on their surface. In this review, we summarize the recent advances in the preparation and applications of organo‐functionalized porous materials with different structures. Initially, a brief historical overview of functionalized porous materials is presented, and the subsequent sections discuss the recent developments and applications of various functional porous materials. In particular, the focus is given on the various methods used for the preparation of organo‐functionalized materials and their important roles in the heterogenization of homogeneous catalysts. A special emphasis is also given on the applications of these functionalized porous materials for catalysis, CO2 capture and drug delivery.

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Comparative study on the catalytic properties of amino-functionalized silica materials for the transesterification of dimethyl oxalate with phenol

Cited by 9 publications

References 37 publications

Inorganic‐organic hybrid material based on amine‐functionalized zeolite Y: A study of catalytic activity in transesterification

Inorganic‐organic hybrid material based on amine‐functionalized zeolite Y: A study of catalytic activity in transesterification

Mesoporous Materials Prepared Using Cashew Nut Shell Liquid and Castor Oil as Surfactants

Recent Advances in the Preparation and Applications of Organo‐functionalized Porous Materials

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