The Experts below are selected from a list of 31527 Experts worldwide ranked by ideXlab platform
Lili Sun - One of the best experts on this subject based on the ideXlab platform.
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economical and efficient aqueous reductions of High Melting Point imines and nitroarenes to amines promotion effects of granular ptfe
ChemInform, 2015Co-Authors: Xiaoxue Cui, Lili SunAbstract:The reduction of aromatic imines or aromatic nitro compounds by Zn powder can be performed in aqueous solution using catalytic amounts of Aliquat 336 in the presence of granular polytetrafluoroethylene and NaOH or NH4Cl.
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economical and efficient aqueous reductions of High Melting Point imines and nitroarenes to amines promotion effects of granular ptfe
RSC Advances, 2014Co-Authors: Xiaoxue Cui, Lili SunAbstract:The reductions of High Melting-Point imines and nitroarenes to amines in aqueous media using Zn powder, granular PTFE (polytetrafluoroethylene), catalytic Aliquat 336 and NH4Cl or 5% NaOH at room temperature have been achieved. A major advantage of this procedure is that the cost of the catalyst is only 1/7200 of that of a previously reported nitroaromatic aqueous reduction catalyst. Altogether 13 imines and 11 nitroarenes were reduced to the corresponding amines with excellent yields. The effects of the amount of granular PTFE, and solubilities and Melting Points of the substrates, and Melting Points of the products on the reaction rates are discussed. For the first time, the relationship between the aqueous reaction rates and Melting Points of the products was investigated, which leads to a conclusion that lower Melting-Point products form faster than Higher Melting-Point ones in the aqueous reductions. The Aliquat 336, granular PTFE and water are all recyclable.
Shirong Huang - One of the best experts on this subject based on the ideXlab platform.
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Transition of ionic liquid [bmim][PF6] from liquid to High-Melting-Point crystal when confined in multiwalled carbon nanotubes
Journal of the American Chemical Society, 2007Co-Authors: Shimou Chen, Maolin Sha, Guozhong Wu, Shirong HuangAbstract:In this communication, we report our finding on the transition of ionic liquid [bmim][PF6] from the liquid state to High-Melting-Point crystal when confined in multiwalled carbon nanotubes. This novel crystallization behavior is explained by the nanosized effect of carbon nanotubes on the structure of ionic liquid.
Xiaoxue Cui - One of the best experts on this subject based on the ideXlab platform.
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economical and efficient aqueous reductions of High Melting Point imines and nitroarenes to amines promotion effects of granular ptfe
ChemInform, 2015Co-Authors: Xiaoxue Cui, Lili SunAbstract:The reduction of aromatic imines or aromatic nitro compounds by Zn powder can be performed in aqueous solution using catalytic amounts of Aliquat 336 in the presence of granular polytetrafluoroethylene and NaOH or NH4Cl.
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economical and efficient aqueous reductions of High Melting Point imines and nitroarenes to amines promotion effects of granular ptfe
RSC Advances, 2014Co-Authors: Xiaoxue Cui, Lili SunAbstract:The reductions of High Melting-Point imines and nitroarenes to amines in aqueous media using Zn powder, granular PTFE (polytetrafluoroethylene), catalytic Aliquat 336 and NH4Cl or 5% NaOH at room temperature have been achieved. A major advantage of this procedure is that the cost of the catalyst is only 1/7200 of that of a previously reported nitroaromatic aqueous reduction catalyst. Altogether 13 imines and 11 nitroarenes were reduced to the corresponding amines with excellent yields. The effects of the amount of granular PTFE, and solubilities and Melting Points of the substrates, and Melting Points of the products on the reaction rates are discussed. For the first time, the relationship between the aqueous reaction rates and Melting Points of the products was investigated, which leads to a conclusion that lower Melting-Point products form faster than Higher Melting-Point ones in the aqueous reductions. The Aliquat 336, granular PTFE and water are all recyclable.
Prawarisa Wasutrasawat - One of the best experts on this subject based on the ideXlab platform.
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drug solubilisation in lipid nanoparticles containing High Melting Point triglycerides
European Journal of Pharmaceutics and Biopharmaceutics, 2013Co-Authors: Prawarisa Wasutrasawat, Hisham Alobaidi, Simon Gaisford, Jayne M Lawrence, Warangkana WarisnoicharoenAbstract:The effect of lipid (either the triglyceride trilaurin or tripalmitin, Melting Points of 43 and 64 °C, respectively) on the properties of lipid nanoparticles (LN) stabilised by the surfactant, polyoxyethylene-10-oleyl ether (C18:1E10) at a temperature of 22 °C, has been determined. LN were prepared by heating lipid, surfactant and water to 70 °C and cooling to ambient temperature with constant stirring. While lipid type influenced LN formation in that trilaurin-containing LN formed over the greatest range of compositions, phase inversion studies suggested that both lipids formed a core within the LN while light scattering studies indicated that the size of both types of LN varied with lipid concentration: in an approximately linear fashion for clear or opalescent LN and exponentially for cloudy LN. Additionally, both types of preformed LN exhibited an increase in solubilisation capacity of the hydrophobic drug, testosterone propionate compared to C18:1E10 micelles, although the trilaurin-containing LN exhibited the greatest increase. Differential scanning calorimetry studies demonstrated that trilaurin formed a 'fluid-like' core and therefore liquefied-lipid nanoparticles, which allowed dissolution of testosterone propionate in the lipid core. In contrast, tripalmitin was present in a 'solid-like' state forming solid lipid nanoparticles which did not allow testosterone propionate dissolution in the core.
Shimou Chen - One of the best experts on this subject based on the ideXlab platform.
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Transition of ionic liquid [bmim][PF6] from liquid to High-Melting-Point crystal when confined in multiwalled carbon nanotubes
Journal of the American Chemical Society, 2007Co-Authors: Shimou Chen, Maolin Sha, Guozhong Wu, Shirong HuangAbstract:In this communication, we report our finding on the transition of ionic liquid [bmim][PF6] from the liquid state to High-Melting-Point crystal when confined in multiwalled carbon nanotubes. This novel crystallization behavior is explained by the nanosized effect of carbon nanotubes on the structure of ionic liquid.