Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis

Aghapoor, Kioumars; Ebadinia, Leila; Mohsenzadeh, Farshid; Morad, Mina Mohebi; Balavar, Yadollah; Darabi, Hossein Reza

doi:10.1016/j.jorganchem.2012.02.008

Cited by 63 publications

(24 citation statements)

References 46 publications

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“…[12][13][14][15][16][17][18][19] Moreover, transition metal oxide systems having redox properties are also used for the conversion of organic constituent sustainable and renewable chemicals. [20][21][22] The physicochemical properties of transition metal oxides are considered to be a potential factor in carrying out discriminating organic reactions. Meanwhile, the rate-determining step on the surface of such novel materials would be evaluated via the mass of energetic sites in addition to the BraunerEmmett-Teller (BET) surface area with notable improvements in catalytic activity related to increases in BET surface area that comes from smaller particle diameters.…”

Section: Introductionmentioning

confidence: 99%

Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles

Al-Fahdawi¹,

Abdullah²,

Al‐Qubaisi³

et al. 2015

IJN

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Iron–manganese-doped sulfated zirconia nanoparticles with both Lewis and Brønsted acidic sites were prepared by a hydrothermal impregnation method followed by calcination at 650°C for 5 hours, and their cytotoxicity properties against cancer cell lines were determined. The characterization was carried out using X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, Brauner–Emmett–Teller (BET) surface area measurements, X-ray fluorescence, X-ray photoelectron spectroscopy, zeta size potential, and transmission electron microscopy (TEM). The cytotoxicity of iron–manganese-doped sulfated zirconia nanoparticles was determined using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays against three human cancer cell lines (breast cancer MDA-MB231 cells, colon carcinoma HT29 cells, and hepatocellular carcinoma HepG2 cells) and two normal human cell lines (normal hepatocyte Chang cells and normal human umbilical vein endothelial cells [HUVECs]). The results suggest for the first time that iron–manganese-doped sulfated zirconia nanoparticles are cytotoxic to MDA-MB231 and HepG2 cancer cells but have less toxicity to HT29 and normal cells at concentrations from 7.8 μg/mL to 500 μg/mL. The morphology of the treated cells was also studied, and the results supported those from the cytotoxicity study in that the nanoparticle-treated HepG2 and MDA-MB231 cells had more dramatic changes in cell morphology than the HT29 cells. In this manner, this study provides the first evidence that iron–manganese-doped sulfated zirconia nanoparticles should be further studied for a wide range of cancer applications without detrimental effects on healthy cell functions.

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Section: Introductionmentioning

confidence: 99%

Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles

Al-Fahdawi¹,

Abdullah²,

Al‐Qubaisi³

et al. 2015

IJN

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“…81 BiCl 3 /SiO 2 could act as a highly efficient and reusable heterogeneous Lewis acid catalyst during the synthesis of Paal-Knorr pyrrole in hexane at room temperature. 82 …”

Section: Catalysts In Chemical Synthesis Reactionmentioning

confidence: 99%

Characteristics, Applications and Determination of Bismuth

Liu¹,

Xiao²,

Xu³

et al. 2016

j nanosci nanotechnol

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Bismuth has received considerable attention and been widely used in many fields due to its relatively low toxicity and special properties. This paper reviews the physical and chemical characteristics of bismuth, summarizes its applications, and introduces the techniques for the determinations of bismuth. However, the long-term use of bismuth may also bring about some side effects and even toxicity to human body, which was described here as well. In the end, we conclude the current situation and potential future of bismuth in respects of application and determination.

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“…The white precipitate was dried at 373 K under vacuum and calcined at 813 K for 6 h to remove the surfactant. The obtained MCM-41 mesoporous silica was activated with hydrochloric acid [48].…”

Section: Preparation Of Mcm-41 Mesoporous Silicamentioning

confidence: 99%

Synthesis and stability of L-tryptophan adsorbed on Ti/MCM-41 as a catalyst for the regioselective aminolysis of styrene oxide

Aghapoor

Amini

Jadidi

et al. 2015

Solid State Sciences

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Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis

Cited by 63 publications

References 46 publications

Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles

Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles

Characteristics, Applications and Determination of Bismuth

Synthesis and stability of L-tryptophan adsorbed on Ti/MCM-41 as a catalyst for the regioselective aminolysis of styrene oxide

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Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis

Cited by 63 publications

References 46 publications

Cytotoxicity and physicochemical characterization of iron&ndash;manganese-doped sulfated zirconia nanoparticles

Cytotoxicity and physicochemical characterization of iron&ndash;manganese-doped sulfated zirconia nanoparticles

Characteristics, Applications and Determination of Bismuth

Synthesis and stability of L-tryptophan adsorbed on Ti/MCM-41 as a catalyst for the regioselective aminolysis of styrene oxide

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Product

Resources

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Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles

Cytotoxicity and physicochemical characterization of iron–manganese-doped sulfated zirconia nanoparticles