Catalytic behavior of copper–amine complex supported on mesoporous silica SBA-15 toward mono-Aza-Michael addition: role of amine groups

Hakiki, Aboubakr; Kerbadou, Riad Mustpha; Boukoussa, Bouhadjar; Zahmani, Hadjira Habib; Launay, Franck; Pailleret, Alain; Pillier, Françoise; Hacini, Salih; Bengueddach, Abdelkader; Hamacha, Rachida

doi:10.1007/s10904-019-01139-7

Cited by 19 publications

(7 citation statements)

References 52 publications

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“…3 particularly at lower temperatures [1][2][3][4][5][6]. Adsorption is the most suitable solution for the treatment of low levels of CO 2 concentration at low temperatures.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…In order to obtain a high affinity and adsorption capacity of CO 2 , several materials have been tested such as clays [1][2][3][4], zeolites [7][8][9][10], mesoporous silicas [5,[11][12][13], activated carbon [14,15], polymers [16][17][18], MOFs [19,20], aerogels [21]...…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Among the materials suitable for adsorption of CO 2 , there are mesoporous silicas (such as SBA-15, MCM-48 and MCM-41) which have interesting physico-chemical properties [5,11,[22][23][24][25][26][27][28]. They are useful for a large number of applications mainly due to their high surface areas and large pore sizes.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…The mesoporous silica SBA-15 was prepared hydrothermally using TEOS as a silica source, P123 as a structuring agent. The preparation method was well described in our previously published work [5,11,25,27]. The calcined mesoporous silica SBA-15 has been functionalized by different aminosilanes according to the method described in the literature [5,27] According to the literature, the functionalized materials were treated in a 100 mL of solution containing Cu(NO 3 ) 2 (1M) [5].…”

Section: Preparation Of Adsorbentsmentioning

confidence: 99%

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Mesoporous silica supported amine and amine-copper complex for CO2 adsorption: Detailed reaction mechanism of hydrophilic character and CO2 retention

Boukoussa

Hakiki

Bouazizi

et al. 2019

Journal of Molecular Structure

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The mesoporous silica SBA-15 functionalized with various amines was prepared and then doped with copper (Cu ++). The modified materials were tested for the retention of CO 2 at room temperature using temperature-programmed desorption (CO 2-TPD). Several parameters affecting the CO 2 retention capacity (CRC) were investigated such as effect of the nature of amine groups, repetitive adsorption-desorption cycles and dispersion of copper. CO 2-TPD and H 2 O-TPD were employed in order to correlate the hydrophilic character with the CO 2 retention capacity. The obtained results showed that amines-functionalized mesoporous materials containing their own moisture have good results towards the retention of CO 2. Especially the triamine-functionalized SBA-15 has the greatest CRC value which results in the increase of the number of adsorption sites. The reuse of these solids in three adsorption/desorption cycles showed higher stability with a slight decrease in CRC. The dispersion of copper showed a progressive decrease in the CRC value. The correlation between the Cu% and the CRC shows that the value of the CRC decreases with increasing Cu% due to complexation of the adsorption sites (amines) by acid sites (copper).

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“…3 particularly at lower temperatures [1][2][3][4][5][6]. Adsorption is the most suitable solution for the treatment of low levels of CO 2 concentration at low temperatures.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Preparation Of Adsorbentsmentioning

confidence: 99%

See 2 more Smart Citations

Mesoporous silica supported amine and amine-copper complex for CO2 adsorption: Detailed reaction mechanism of hydrophilic character and CO2 retention

Boukoussa

Hakiki

Bouazizi

et al. 2019

Journal of Molecular Structure

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“…In the last decades, a particular interest was set on the use of the mesoporous silica in catalysis and adsorption [35][36][37][38][39][40][41][42][43][44][45][46], due to their higher specific surface areas and pore size compared to the zeolites. These catalysts may be easily recov-ered at the end of a reaction and can be reused in several cycles.…”

Section: Introductionmentioning

confidence: 99%

Efficient multicomponent synthesis of 2-aminopyridines catalysed by basic mesoporous materials

et al. 2020

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An efficient and green procedure for the synthesis of 2aminopyridines derivatives via four-component reaction of acetophenone, malononitrile, triethoxymethane and different primary amines has been developed using different surfactant-containing mesoporous catalysts. The advantages of this approach are easy operational method, high product yields and reusable catalysts without losing their catalytic activity.

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Aza‐Michael Reaction: A Decade Later – Is the Research Over?

Rulev

2023

Eur J Org Chem

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The 1,4‐conjugated addition of nitrogen centered nucleophiles to electron‐deficient alkenes, historically called the aza‐Michael addition, is one of the most significant and widely used reactions in modern synthetic organic chemistry. In the last decade, great progress has been made in this field namely in the development of various catalytic systems. Fundamental advances involve the use of transition metal catalysts, organocatalysts, enzymes, ionic liquids, Brønsted and Lewis acids and bases. This Review aims to critically analyze the results of research into the reactions of aliphatic and aromatic amines with Michael acceptors.

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Catalytic behavior of copper–amine complex supported on mesoporous silica SBA-15 toward mono-Aza-Michael addition: role of amine groups

Cited by 19 publications

References 52 publications

Mesoporous silica supported amine and amine-copper complex for CO2 adsorption: Detailed reaction mechanism of hydrophilic character and CO2 retention

Mesoporous silica supported amine and amine-copper complex for CO2 adsorption: Detailed reaction mechanism of hydrophilic character and CO2 retention

Efficient multicomponent synthesis of 2-aminopyridines catalysed by basic mesoporous materials

Aza‐Michael Reaction: A Decade Later – Is the Research Over?

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