The reaction of glycerol carbonate with primary aromatic amines in the presence of Y- and X-faujasites: the synthesis of N-(2,3-dihydroxy)propyl anilines and the reaction mechanism

Selva, Maurizio; Fabris, Massimo

doi:10.1039/b904821a

Cited by 32 publications

(22 citation statements)

References 50 publications

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“…In brief, as compared in Figure 5A, CO 2 chemically adsorbed on the intrinsic Lewis basic sites of NaY is more difficult to be desorbed than the chemisorbed CO 2 on the host–guest systems. The phenomenon can be attributed to the stronger basicity of intrinsic basic sites in NaY than that of imidazolium cations or of –NH 2 groups2548. As for the [APMIM]Br@NaY host-guest systems, they possess three types of adsorption centers due to the Lewis basic site of NaY, carbene centers and free –NH 2 groups.…”

Section: Resultsmentioning

confidence: 99%

Ship-in-a-bottle synthesis of amine-functionalized ionic liquids in NaY zeolite for CO2 capture

Mai

Wang

et al. 2014

Sci Rep

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CO2 capture on solid materials possesses significant advantages on the operation cost, process for large-scale CO2 capture and storage (CCS) that stimulates great interest in exploring high-performance solid CO2 adsorbents. A ship-in-a-bottle strategy was successfully developed to prepare the [APMIM]Br@NaY host–guest system in which an amine-functionalized ionic liquid (IL), 1-aminopropyl-3-methylimidazolium bromide ([APMIM]Br), was in-situ encapsulated in the NaY supercages. The genuine host-guest systems were thoroughly characterized and tested in CO2 capture from simulated flue gas. It was evidenced the encapsulated ILs are more stable than the bulk ILs. These host–guest systems exhibited superb overall CO2 capture capacity up to 4.94 mmol g−1 and the chemically adsorbed CO2 achieved 1.85 mmol g−1 depending on the [APMIM]Br loading amount. The chemisorbed CO2 can be desorbed rapidly by flushing with N2 gas at 50°C. The optimized [APMIM]Br@NaY system remains its original CO2 capture capacity in multiple cycling tests under prolonged harsh adsorption-desorption conditions. The excellent physicochemical properties and the CO2 capture performance of the host-guest systems offer them great promise for the future practice in the industrial CO2 capture.

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Section: Resultsmentioning

confidence: 99%

Ship-in-a-bottle synthesis of amine-functionalized ionic liquids in NaY zeolite for CO2 capture

Mai

Wang

et al. 2014

Sci Rep

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“…Another important chemical derived from glycerol * For correspondence is glycerol carbonate (GC), a highly value added product with many potential applications. [12][13][14][15][16] Etherification of glycerol is generally facilitated by acid catalysts. Thus, acid catalysts such as sulfuric acid, p-toluenesulfonic acid, acidic ion exchange resins, wide pore zeolites, and acid-functionalized mesostructured silicas have been used for etherification of glycerol.…”

Section: Introductionmentioning

confidence: 99%

Understanding the surface and structural characteristics of tungsten oxide supported on tin oxide catalysts for the conversion of glycerol

et al. 2015

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Catalysts with varying WO 3 content on SnO 2 were prepared and characterized by X-ray diffraction, in situ Raman spectroscopy, X-ray photoelectron spectroscopy and temperature programmed desorption of NH 3 . In situ Raman analysis reveals the presence isolated monomers and polymeric species of WO 3 . These catalysts were evaluated for the conversion of glycerol into value added chemicals. Etherification of glycerol with tertiary butanol and preparation of glycerol carbonate from glycerol and urea are studied over these catalysts. The catalytic activity results suggest that the glycerol conversion and selectivity depends on the morphology of WO 3 which in turn is related to its content in the catalyst. The catalysts with 5 wt.% of WO 3 on SnO 2 resulted in high dispersion with larger number of strong acidic sites. The selectivity in the glycerol etherification is related to the nature of the catalyst and reaction time. These catalysts also exhibited high activity for synthesis of glycerol carbonate. The effect of various reaction parameters was studied to optimize the reaction conditions. The catalysts also exhibited consistent activity upon reuse.

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“…With rapidly increasing production of biodiesel, much attention has been focused on the utilization of glycerol for producing value-added chemicals [1]. Among the chemicals derived from glycerol, glycerol carbonate, which can be used as the solvent or reaction intermediate, is a high value-added product with many potential applications [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

On the deactivation of alkali solid catalysts for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate

Wang

2010

Reac Kinet Mech Cat

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The deactivation of alkali solid catalysts for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate was investigated. Calcium oxide, calcium hydroxide and calcium methoxide were chosen as the representatives of the alkali solid catalysts. When the catalysts were recycled, the yield of glycerol carbonate decreased dramatically. The alkali solid catalyst was converted to the basic calcium carbonate Ca x (OH) y (CO 3 ) z , which was the cause of the decrease of glycerol carbonate yield. It was found that the chemical interactions of the alkali solid catalyst with glycerol and glycerol carbonate led to the formation of the basic calcium carbonate Ca x (OH) y (CO 3 ) z , for which the mechanism was proposed. Based on the deactivation mechanism, calcium diglyceroxide was adopted as a new catalyst for the transesterification of glycerol and dimethyl carbonate. Compared to calcium oxide, calcium hydroxide and calcium methoxide, calcium diglyceroxide showed excellent reusability for the transesterification of glycerol and dimethyl carbonate. For calcium oxide, calcium methoxide and calcium diglyceroxide, there were dissolution losses of the catalysts in the reaction medium. For calcium hydroxide, the catalyst dissolution loss in the reaction medium was nearly negligible. For calcium diglyceroxide, the dissolution of the catalyst in the reaction medium did not influence the yield of glycerol carbonate significantly.

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The reaction of glycerol carbonate with primary aromatic amines in the presence of Y- and X-faujasites: the synthesis of N-(2,3-dihydroxy)propyl anilines and the reaction mechanism

Cited by 32 publications

References 50 publications

Ship-in-a-bottle synthesis of amine-functionalized ionic liquids in NaY zeolite for CO2 capture

Ship-in-a-bottle synthesis of amine-functionalized ionic liquids in NaY zeolite for CO2 capture

Understanding the surface and structural characteristics of tungsten oxide supported on tin oxide catalysts for the conversion of glycerol

On the deactivation of alkali solid catalysts for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate

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