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Journal articles on the topic 'Montmorillonite K10'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Sekewael, Serly J., Karna Wijaya, and Triyono . "Effect Of Heating On The Crystalinity And The Lattice Parameter Of Silica-Zirconia Montmorillonite K10 And Silica-Ferri Oxide Montmorillonite K10 Nanocomposites." Indo. J. Chem. Res. 6, no. 1 (2018): 550–55. http://dx.doi.org/10.30598//ijcr.2018.6-ser.

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The thermal treatment of the silica-zirconia montmorillonite K10 and silica-ferri oxide montmorillonite K10 nanocomposites at 300 and 500 °C has been carried out, respectively as part of a study of their function as the catalyst. The heating effect on the crystallinity and the lattice parameter calculation of both nanocomposites was studied using XRD and FTIR instruments. The results showed that the nanocomposite silica-zirconia montmorillonite K10 has a thermal resistance and the crystallinity better than the silica-ferri oxide montmorillonite K10, and both have values varying lattice paramet

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2

Sekewael, Serly J., Karna Wijaya, and Triyono . "Pengaruh Pemanasan Terhadap Kristalinitas Dan Parameter Kisi Nanokomposit Silika-Zirkonia Montmorillonit K10 Dan Silika-Besi Oksida Montmorillonit K10." Indo. J. Chem. Res. 6, no. 1 (2018): 38–43. http://dx.doi.org/10.30598//ijcr.2018.6-sjs.

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The thermal treatment of the silica-zirconia montmorillonite K10 and silica-ferri oxide montmorillonite K10 nanocomposites at 300 and 500 °C has been carried out, respectively as part of a study of their function as the catalyst. The heating effect on the crystallinity and the lattice parameter calculation of both nanocomposites was studied using XRD and FTIR instruments. The results showed that the nanocomposite silica-zirconia montmorillonite K10 has a thermal resistance and the crystallinity better than the silica-ferri oxide montmorillonite K10, and both have values varying lattice paramet

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3

Sekewael, Serly J., Karna Wijaya, and Triyono . "Pengaruh Pemanasan Terhadap Kristalinitas Dan Parameter Kisi Nanokomposit Silika-Zirkonia Montmorillonit K10 Dan Silika-Besi Oksida Montmorillonit K10." Indonesian Journal of Chemical Research 6, no. 1 (2018): 38–43. http://dx.doi.org/10.30598/ijcr.2018.6-sjs.

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The thermal treatment of the silica-zirconia montmorillonite K10 and silica-ferri oxide montmorillonite K10 nanocomposites at 300 and 500 Â°C has been carried out, respectively as part of a study of their function as the catalyst. The heating effect on the crystallinity and the lattice parameter calculation of both nanocomposites was studied using XRD and FTIR instruments. The results showed that the nanocomposite silica-zirconia montmorillonite K10 has a thermal resistance and the crystallinity better than the silica-ferri oxide montmorillonite K10, and both have values varying lattice parame

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4

Soriente, Annunziata, Rosa Arienzo, Margherita De Rosa, Aldo Spinella, Arrigo Scettri, and Laura Palombi. "K10 montmorillonite catalysis." Green Chemistry 1, no. 3 (1999): 157–62. http://dx.doi.org/10.1039/a902102g.

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5

BEKCI, ZEHRA MOLU, MINE KURTBAY ANTEP, MELEK MERDIVAN, and KADIR YURDAKOÇ. "Zearalenone Removal in Synthetic Media and Aqueous Part of Canned Corn by Montmorillonite K10 and Pillared Montmorillonite K10." Journal of Food Protection 74, no. 6 (2011): 954–59. http://dx.doi.org/10.4315/0362-028x.jfp-10-317.

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The capacities of montmorillonite K10 (K10), aluminum pillared K10 (Al-K10), and iron pillared K10 (Fe-K10) to eliminate zearalenone (ZEN) from synthetic media and the aqueous part of canned corn were studied. Original clay and pillared clays were characterized in terms of X-ray powder diffraction analysis and N2 adsorption-desorption isotherms. The maximum amounts of adsorption of ZEN by K10, Al-K10, and Fe-K10 at 25°C and pH 7 were 0.202, 1.305, and 1.028 mg/g and 0.264, 0.096, and 0.255 mg/g, calculated from Langmuir and Freundlich isotherms, respectively. The adsorption of ZEN was also stu

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6

Bonacci, Sonia, Monica Nardi, Paola Costanzo, et al. "Montmorillonite K10-Catalyzed Solvent-Free Conversion of Furfural into Cyclopentenones." Catalysts 9, no. 3 (2019): 301. http://dx.doi.org/10.3390/catal9030301.

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A simple and eco-friendly montmorillonite K10 (MK10)-catalyzed method for the synthesis of cyclopentenone derivatives from biomass-produced furfural has been developed. The versatility of this protocol is that the reactions were performed under solvent-free conditions and in a short reaction time under heterogeneous catalysis. Montmorillonite K10 is mostly explored as a heterogeneous catalyst since it is inexpensive and environmentally friendly.

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7

Cheng, Lehua, Enzhu Hu, Xianquan Chao, Renfa Zhu, Kunhong Hu, and Xianguo Hu. "MoS2/Montmorillonite Nanocomposite: Preparation, Tribological Properties, and Inner Synergistic Lubrication." Nano 13, no. 12 (2018): 1850144. http://dx.doi.org/10.1142/s1793292018501448.

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A nano-MoS2/montmorillonite K-10 (K10) composite was prepared and characterized. The composite contains two types of 2H-MoS2 nanoparticles. One is the hollow spherical MoS2 with a size range of 75[Formula: see text]nm, and the other is the spherical nano cluster of MoS2 with a size range of 30[Formula: see text]nm. The two kinds of nano-MoS2 were formed via assembly of numerous MoS2 nano-platelets with a size of [Formula: see text][Formula: see text]nm. A tribological comparison was then made among nano-MoS2/K10, K10, nano-MoS2 and a mechanical mixture of K10 and nano-MoS2. K10 reduced the wea

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8

Asseid, Fathi M., Jack M. Miller, and James H. Clark. "FT-IR and 29Si, 27Al, and 19F MAS NMR studies of the adsorption of CdF2, ZnF2, and CuF2 onto montmorillonite K10; activity towards Friedel–Crafts alkylation." Canadian Journal of Chemistry 70, no. 9 (1992): 2398–404. http://dx.doi.org/10.1139/v92-304.

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ZnF2, CdF2, and CuF2 have been adsorbed onto the surface of montmorillonite K10, and the infrared and 19F, 27Al, and 29Si MAS NMR spectra of the resulting reagents over a range of loadings and activation temperatures have been obtained. CuF2 was observed to attack the SiO2 layer and form the complex CuSiF6, ZnF2 tends to attack the aluminium oxide layer, in which Zn isomorphously replaces Al, and forms AlF3 and AlF4− complexes. The spectroscopic evidence rules out the formation of any Al–F and (or) Si–F species as CdF2 is adsorbed on the surface of montmorillonite K10. The reactivity of MF2–K1

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9

Kawi, S., and Y. Z. Yao. "Silica bonded K10 montmorillonite (SBM):." Microporous and Mesoporous Materials 28, no. 1 (1999): 25–34. http://dx.doi.org/10.1016/s1387-1811(98)00279-0.

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10

Ravi, K., B. Krishnakumar, and M. Swaminathan. "An Efficient Protocol for the Green and Solvent-Free Synthesis of Azine Derivatives at Room Temperature Using BiCl3-Loaded Montmorillonite K10 as a New Recyclable Heterogeneous Catalyst." ISRN Organic Chemistry 2012 (November 14, 2012): 1–9. http://dx.doi.org/10.5402/2012/595868.

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A new BiCl3-loaded montmorillonite K10 catalyst has been prepared by solid dispersion method and was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and cyclic voltammetry (CV) measurements. BiCl3 loaded K10 (BiCl3-K10) has been used as solid acid catalyst for the synthesis of azine derivatives from benzophenone hydrazone and ketones/aldehydes by simple physical grinding. This BiCl3-K10 gives an excellent yield with short reaction time and is an inexpensive, easily recyclable catalyst for this reaction.

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11

Alekseeva, Olga, Andrew Noskov, Elena Grishina, et al. "Structural and Thermal Properties of Montmorillonite/Ionic Liquid Composites." Materials 12, no. 16 (2019): 2578. http://dx.doi.org/10.3390/ma12162578.

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Composites of montmorillonite K10 (MMT K10) and ionic liquid (IL) containing a 1-butyl-3-methyl-imidazolium cation ([BMIm]+) and various anions, such as bis (trifluoromethylsulfonyl) imide ([NTf2]−), trifluoromethanesulfonate ([OTf]−), and dicyanamide ([DCA]−) have been obtained in this work. A number of methods, such as dynamic light scattering (DLS), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetry (TG), differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and nitrogen adsorption–desorption have been used to characterize clay

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12

Patil, Shripad M., Runjhun Tandon, Nitin Tandon, Iqubal Singh, Ashwini Bedre, and Vilas Gade. "Magnetite-supported montmorillonite (K₁₀) (nanocat-Fe-Si-K₁₀): an efficient green catalyst for multicomponent synthesis of amidoalkyl naphthol." RSC Advances 13, no. 25 (2023): 17051–61. http://dx.doi.org/10.1039/d3ra01522j.

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13

Kumar, Basuvaraj Suresh, Amarajothi Dhakshinamoorthy, and Kasi Pitchumani. "K10 montmorillonite clays as environmentally benign catalysts for organic reactions." Catal. Sci. Technol. 4, no. 8 (2014): 2378–96. http://dx.doi.org/10.1039/c4cy00112e.

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14

Sekewael, Serly Jolanda, Karna Wijaya, and Triyono. "Chemical Modification of Montmorillonite K10 and Its Catalytic Activity." Asian Journal of Chemistry 32, no. 3 (2020): 659–64. http://dx.doi.org/10.14233/ajchem.2020.22216.

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Montmorillonite K10 (Mt-K10) was chemically modified using a silica-zirconia mixture and the resulting product was named SZMK. The product had an increased total surface acidity, catalytic activity, porosity, and thermal stability. Ammonia adsorption tests and further verification with FTIR and TGA/DTA showed that the acidity of SZMK was higher (0.16 mmol/g) than that of Mt-K10. Catalytic performance was analyzed on the esterification reaction of lauric acid. Refluxing lauric acid and methanol (molar ratio of 1:20) for 20 h with a 20 % (w/w) catalyst showed that catalytic activity of SZMK is h

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15

Yamanaka, Nobutaka, Koji Nishi, Kenji Yasunaga, and Hiroshi Yamada. "Synthesis of ethyl furfuryl ether via etherification of furfuryl alcohol with ethanol over montmorillonite K10." RSC Advances 14, no. 35 (2024): 25221–26. http://dx.doi.org/10.1039/d4ra03921a.

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16

Wu, Xianzhang, Xinnian Xia, Ran Liu, and You Chen. "Hydroxyalkylation of phenol to bisphenol F over Al-pillared clay." RSC Advances 6, no. 41 (2016): 34625–32. http://dx.doi.org/10.1039/c6ra01959e.

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17

Yamanaka, Nobutaka, Koji Nishi, Kenji Yasunaga, and Hiroshi Yamada. "Synthesis of alkyl levulinates via the esterification of levulinic acid and transesterification of methyl levulinate with alkyl alcohols over montmorillonite K10." RSC Advances 15, no. 18 (2025): 14152–57. https://doi.org/10.1039/d5ra00615e.

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18

Wang, Fen-Fen, Jie Liu, Hao Li, Chun-Ling Liu, Rong-Zhen Yang, and Wen-Sheng Dong. "Conversion of cellulose to lactic acid catalyzed by erbium-exchanged montmorillonite K10." Green Chemistry 17, no. 4 (2015): 2455–63. http://dx.doi.org/10.1039/c4gc02131b.

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19

Hashemi, Mohammed M., Behzad Khalili, and Bagher Eftekhari-sis. "Oxidation of Benzylic Alcohols to Carbonyl Compounds with Hydrogen Peroxide Catalysed by Manganeses Chloride Supported on Montmorillonite K10." Journal of Chemical Research 2005, no. 8 (2005): 484–85. http://dx.doi.org/10.3184/030823405774663354.

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20

Yang, Junying, Minye Huang, Shengsen Wang, Xiaoyun Mao, Yueming Hu, and Xian Chen. "Efficient Removal of Levofloxacin by Activated Persulfate with Magnetic CuFe2O4/MMT-k10 Nanocomposite: Characterization, Response Surface Methodology, and Degradation Mechanism." Water 12, no. 12 (2020): 3583. http://dx.doi.org/10.3390/w12123583.

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In this study, a magnetic copper ferrite/montmorillonite-k10 nanocomposite (CuFe2O4/MMT-k10) was successfully fabricated by a simple sol-gel combustion method and was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), the Brunner–Emmett–Teller (BET) method, vibrating sample magnetometer (VSM), and X-ray photoelectron spectroscopy (XPS). For levofloxacin (LVF) degradation, CuFe2O4/MMT-k10 was utilized to activate persulfate (PS). Due to the relative high adsorption capacity of CuFe2O4/MMT-k10, the adsorption feature was consider

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21

Han, Jie, Tao Wang, Siqi Feng, Chenchen Li, and Zunting Zhang. "One-pot synthesis of 3-(furan-2-yl)-4H-chromen-4-ones from 1-(2-hydroxyphenyl)butane-1,3-diones and 2,5-dimethoxy-2,5-dihydrofuran catalyzed via K10 montmorillonite under solvent-free conditions." Green Chemistry 18, no. 14 (2016): 4092–97. http://dx.doi.org/10.1039/c6gc00704j.

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22

Li, Ji-Tai, and Xian-Tao Meng. "Deoximation of Ketoximes to Ketones with Ammonium Chlorochromate/Montmorillonite K10 in Dichloromethane." E-Journal of Chemistry 6, no. 1 (2009): 156–60. http://dx.doi.org/10.1155/2009/258328.

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A convenient, mild and efficient method for oxidative cleavage of ketoximes to their parent carbonyl compounds with ammonium chlorochromate (ACC) / montmorillonite K10 in dichloromethane at room temperature is described

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23

Almadani, Enas A., Farah W. Harun, Salina M. Radzi, and Syamsul K. Muhamad. "Cu2+ Montmorillonite K10 Clay Catalyst as a Green Catalyst for Production of Stearic Acid Methyl Ester: Optimization Using Response Surface Methodology (RSM)." Bulletin of Chemical Reaction Engineering & Catalysis 13, no. 1 (2018): 187. http://dx.doi.org/10.9767/bcrec.13.1.1397.187-195.

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Clay catalyst has received much attention to replace the homogeneous catalysts in the esterification reaction to produce fatty acid methyl ester as the source of biodiesel as it is low cost, easily available, as well as environmental friendly. However, the use of unmodified clay, in particular montmorillonite K10 (MMT K10), for the esterification of fatty acids showed that the acid conversion was less than 60% and this is not preferable to the production of biodiesel. In this study, synthesis of stearic acid methyl ester using Cu2+-MMT K10 (Cu-MMT K10) was successfully optimized via response s

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24

Jankovič, Ľuboš, and Peter Komadel. "Catalytic Properties of a Heated Ammonium-Saturated Dioctahedral Smectite." Collection of Czechoslovak Chemical Communications 65, no. 9 (2000): 1527–36. http://dx.doi.org/10.1135/cccc20001527.

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A series of acid catalysts was prepared by heating of NH4-saturated montmorillonite at 200-600 °C for 24 h. Their catalytic activity was tested in acetylation of 3,4,5-trimethoxybenzaldehyde with acetic anhydride. This reaction is sufficiently sensitive to modification of the catalyst and thus suitable for testing catalytic activity of modified montmorillonites. Most of the prepared catalysts were able to catalyse the test reaction and produce diacetate in higher than 50% yields. The most active catalyst was obtained after heating at 300 °C. It was slightly less effective than commercially ava

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25

Mojtahedi, Mohammad M., Mohammad R. Saidi, and Mohammad Bolourtchian. "Microwave-assisted Aminolysis of Epoxides under Solvent-free Conditions Catalyzed by Montmorillonite Clay." Journal of Chemical Research 23, no. 2 (1999): 128–29. http://dx.doi.org/10.1177/174751989902300231.

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26

G., Annadurai. "Novel biosynthesized nanosilver impregnated heat modified montmorillonite clay K10 nanocomposites for adsorption of malachite green from aqueous solution." Journal of Biodiversity and Environmental Sciences (JBES) 22, no. 4 (2023): 104–17. https://doi.org/10.5281/zenodo.10360815.

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We report here the preparation of highly stabilized nanosilver (AgNp) impregnated clay composites by the biological method. Characterizations by various techniques indicate that the silver nanoparticles were intercalated into montmorillonite clay k10 (MMT k10) composite. The adsorption of malachite green dye onto silver nanoparticles impregnated clay (Ag/MMT K10) and calcined clay (Ag/CMMT K10) in aqueous solution was investigated. Experiments were performed out as function of different dosages (1-3g/L). pH (4.7, 6.7 and 8.7) and temperature (30-60oC).The equilibrium adsorption data of cationi

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27

Barrios-Bermúdez, Niurka, Arisbel Cerpa-Naranjo, and María Luisa Rojas-Cervantes. "Efficient Methylene Blue Degradation by Activation of Peroxymonosulfate over Co(II) and/or Fe(II) Impregnated Montmorillonites." Catalysts 14, no. 8 (2024): 479. http://dx.doi.org/10.3390/catal14080479.

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Two commercial montmorillonites, namely montmorillonite K10 (MK10) and montmorillonite pillared with aluminum (MPil) were impregnated with cobalt(II) and/or iron(II) acetates by incipient wetness impregnation and used to activate peroxymonosulfate (PMS) for the degradation of methylene blue (MB) dye in water. Various characterization techniques, including ICP-MS, XRD, SEM and TEM with EDX, and N2 physisorption, confirmed the successful impregnation process. The removal of the dye resulted from a combined effect of adsorption and PMS activation through Co3+/Co2+ redox couples. The MK10 series e

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28

Shinde, Ajit B., Nilesh B. Shrigadi, Ramakrishna P. Bhat, and Shriniwas D. Samant. "Pinacol-Pinacolone Rearrangement on FeCl3Modified Montmorillonite K10." Synthetic Communications 34, no. 2 (2004): 309–14. http://dx.doi.org/10.1081/scc-120027268.

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29

Galamboš, M., V. Paučová, J. Kufčáková, O. Rosskopfová, P. Rajec, and R. Adamcová. "Cesium sorption on bentonites and montmorillonite K10." Journal of Radioanalytical and Nuclear Chemistry 284, no. 1 (2010): 55–64. http://dx.doi.org/10.1007/s10967-010-0480-1.

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30

Shore, Andrew. "Retraction: Kinetic and mechanistic studies on adsorption of Cu(ii) in aqueous medium onto montmorillonite K10 and its modified derivative." New Journal of Chemistry 44, no. 16 (2020): 6667. http://dx.doi.org/10.1039/d0nj90041a.

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Retraction of ‘Kinetic and mechanistic studies on adsorption of Cu(ii) in aqueous medium onto montmorillonite K10 and its modified derivative’ by Himani Medhi and Krishna G. Bhattacharyya, New J. Chem., 2017, 41, 13533–13552.

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31

Annes, Sesuraj Babiola, Rajendhiran Saritha, Saravanan Subramanian, Bhaskaran Shankar, and Subburethinam Ramesh. "Solvent-free and montmorillonite K10-catalyzed domino reactions for the synthesis of pyrazoles with alkynylester as a dual synthon." Green Chemistry 22, no. 8 (2020): 2388–93. http://dx.doi.org/10.1039/d0gc00162g.

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A highly regioselective, solvent-free and montmorillonite K10 clay-catalyzed domino process with an unprecedented C–C bond formation reaction is described for the synthesis of new class of tri-substituted and di-substituted pyrazole derivatives.

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32

Asseid, Fathi M., Catherine V. A. Duke, and Jack M. Miller. "A 19F magic angle spinning nuclear magnetic resonance and infrared analysis of the adsorption of alkali metal fluorides onto montmorillonite clay." Canadian Journal of Chemistry 68, no. 8 (1990): 1420–24. http://dx.doi.org/10.1139/v90-217.

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Alkali metal fluorides have been adsorbed onto montmorillonite clay K10, and the resulting reagents analysed by 19F magic angle spinning nuclear magnetic resonance and infrared spectroscopy. The complexes M3SiF6, MAlF4, and M3AlF6 are readily formed, the particular complex depending on M, the loading, and the drying temperature employed. Chemisorption of fluoride to give surface -Si-F groups also occurs under certain conditions. Keywords: MAS NMR, alkali metal fluorides, adsorption, montmorillonite clay, infrared.

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33

Reddy, Hariyapureddy Raveendranatha, Chitreddy V. Subba Reddy, Radhakrishnan Subashini, and Selvaraj Mohana Roopan. "Fluorescent and antioxidant studies of effectively synthesized isochromenopyrrolone analogues." RSC Adv. 4, no. 57 (2014): 29999–30003. http://dx.doi.org/10.1039/c4ra02792b.

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An efficient strategy for the synthesis of 3-acetyl-2-methyl-1-phenylisochromeno [4,3-b] pyrrol-5(1H)-ones 4a–f have been developed using montmorillonite K10 as a catalyst. The synthesized compounds have prominent antioxidant activity and fluorescence properties.

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Khedher, I., A. Ghorbel, and A. Tuel. "Physicochemical Properties of Vanadium-Containing Montmorillonite in Epoxidation of Allylic Alcohol." Journal of Chemical Research 2003, no. 7 (2003): 390–94. http://dx.doi.org/10.3184/030823403103174515.

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Vanadium-containing aluminosilicate molecule sieves were observed to exhibit remarkable catalytic activity in oxidation of hydrocarbons, notably epoxidation of allylic alcohol. In this paper, we review the spectroscopic characterisation of framework incorporation and redox behavior of vanadium in both natural montmorillonite and K10. NMR and EPR studies of coordination and oxidation state of vanadium in dried and calcined samples show that vanadium exists mainly in a tetrahedral oxygen coordination as an isolated monomeric state (VO43-) in V-mont and also as dimeric state [O3V-O-VO3]2- in V-K1

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35

Tomkiel, Aneta M., Adam D. Majewski, Leszek Siergiejczyk, and Jacek W. Morzycki. "Montmorillonite Catalyzed Synthesis of Novel Steroid Dimers." Molecules 28, no. 20 (2023): 7068. http://dx.doi.org/10.3390/molecules28207068.

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The reactions of sterols (androst-5-en-3β-ol-17-one, diosgenin, and cholesterol) and their tosylates with hydroquinone aimed at the synthesis of O,O-1,4-phenylene-linked steroid dimers were studied. The reaction course strongly depended on the conditions used. The study has shown that the major reaction products are the elimination products and unusual steroid dimers resulting from the nucleophilic attack of the hydroquinone C2 carbon atom on the steroid C3 position, followed by an intramolecular addition to the C5–C6 double bond. A different reaction course was observed when montmorillonite K

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36

MIRILĂ, DIANA-CARMEN, and DENISA-ILEANA NISTOR. "Oxidative study of Acid Yellow 23 using K10-Montmorillonite chemically modified." Journal of Engineering Sciences and Innovation 6, no. 2 (2021): 159–74. http://dx.doi.org/10.56958/jesi.2021.6.2.6.

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Catalytic ozonation of the azo dye Acid Yellow 23 was investigated in the presence of Montmorillonite K10 and its chemically modified counterpart with Cobalt and Nickel (Co-Ni-K10). The material thus obtained were characterized by BET, XRD and TGA analysis. The effects of different variables were studied, such as: catalyst dose, ozone dose, ozonation time and pH. Clay-catalysed reactions are strongly dependent on the adsorption of the reactant, which in turn should depend on acid-base, electrostatic and hydrophilic-organophilic interactions. The basicity of the clay catalyst surface is expecte

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37

Pham, Dung Duc, Huyen Ngoc Chau, and Thach Ngoc Le. "KF supported on montmorillonite K10 catalyzed one-pot synthesis of 4H-pyran derivatives under ultrasound irradiation and solvent-free condition." Science and Technology Development Journal 19, no. 1 (2016): 5–10. http://dx.doi.org/10.32508/stdj.v19i1.535.

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KF supported on montmorillonite K10 catalyzed three-component cyclocondensation of aromatic aldehyde, cyclohexan-1,3-dione and malononitrile under ultrasound irradiation and solvent-free condition to give the corresponding 4H-pyrans in high yields. This method provides several advantages such as short time, mild condition and the catalyst can be recycled easily.

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38

Waterlot, C., D. Couturier, and B. Hasiak. "Friedel-Crafts Benzylation of 1,4-dialkoxybenzenes – Cleavage and Rearrangement of Esters and Methoxymethyl Ethers in ZnCl2 Montmorillonite K10 Clay." Journal of Chemical Research 2000, no. 3 (2000): 100–101. http://dx.doi.org/10.3184/030823400103166715.

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Benzylation of p-dialkoxybenzenes can be achieved through the use of modified montmorillonite K10 clay. For the first time, syntheses of nitro-diarylmethanes were obtained by Friedel-Crafts alkylation with good yields. In the case of p-methoxymethyl phenyl ether and phenyl ester, selectivity favoring Fries rearrangement over benzylation is reported.

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39

Gültekіn, Z. "Iron (III)-doped montmorillonite catalysis of alkenes bearing sulphoxide groups in Diels-Alder reactions." Clay Minerals 39, no. 3 (2004): 345–48. http://dx.doi.org/10.1180/0009855043930139.

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AbstractFe3+-doped K10 montmorillonite combined with 2,6-di-tert-butyl-4-methyl-phenol is a potent catalytic system for trans-2-methylene-1,3-dithiolane 1,3-dioxide as a dienophile. Cycloaddition occurs with cyclopentadiene and furan as a diene at room temperature in short time and with good yields (64% overall).

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40

Li, Li-Jun, Ying-Xia Song, Yan-Su Gao, Yan-Feng Li, and Jian-Feng Zhang. "Solvent-free Synthesis of Nitriles from Aldehydes Catalyzed by KF/Al2O3, Montmorillonite KSF and K10." E-Journal of Chemistry 3, no. 3 (2006): 164–68. http://dx.doi.org/10.1155/2006/709594.

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Multistep and one-pot conversion of aldehydes to nitriles were carried out conveniently with out solvent using KF/Al2O3, montmorillonite KSF and K10 as catalyst, under microwave irradiation. The reactions are completed within 6-8 min to give satisfactory yields. KF/Al2O3was more effective catalyst both in multistep procedure and one-pot reaction.

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KOÇAK, Ramazan. "Microwave Assisted and Montmorillonite-K10 Catalyzed Alcohollysis of Benzonorbornadiene Oxide: Synthesis of Regioselective New Alkoxy Alcohols by Wagner–Meerwein Rearrangement." Journal of the Institute of Science and Technology 12, no. 3 (2022): 1690–702. http://dx.doi.org/10.21597/jist.1106341.

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In this study, microwave assisted ring opening of benzonorbornadiene epoxide with alcohols was investigated. New alkoxy alcohols were synthesized regioselectively by Wagner–Meerwein rearrangement in short reaction times (up to 10 minutes) with high yield in the presence of a cheap and environmentally friendly heterogeneous montmorillonite-K10 catalyst. The products were purified by filtration only.

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Sánchez, Vladimir, María Dolores González, Pilar Salagre, and Yolanda Cesteros. "Acid-Modified Clays for the Catalytic Obtention of 5-Hydroxymethylfurfural from Glucose." ChemEngineering 6, no. 4 (2022): 57. http://dx.doi.org/10.3390/chemengineering6040057.

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5-hydroxymethylfurfural (5-HMF) is an important platform molecule for the synthesis of high-added value products. Several synthesized clay materials, such as mesoporous hectorite and fluorohectorite, in addition to commercial montmorillonite K-10, have been acid modified by different methodologies to be applied as catalysts for the obtention of 5-HMF from glucose. The effects of the Brønsted and/or Lewis acidity, the reaction temperature and time, and the catalyst/glucose ratio on the conversion but especially on the selectivity to 5-HMF have been studied. By comparing the synthesized clays, t

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Pai, S. G., A. R. Bajpai, A. B. Deshpande, and S. D. Samant. "Friedel-Crafts Benzylation of Arenes Using FeCl3Impregnated Montmorillonite K10." Synthetic Communications 27, no. 13 (1997): 2267–73. http://dx.doi.org/10.1080/00397919708003381.

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Somanathan, R., I. A. Rivero, Angeles Gama, A. Ochoa, and G. Aguirre. "Montmorillonite-K10 Catalyzed Addition OF Trimethylsilylcyanide (TMSCN) to Aldehydes." Synthetic Communications 28, no. 11 (1998): 2043–48. http://dx.doi.org/10.1080/00397919808007179.

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Mancebo-Aracil, Juan, Belén Alonso, and Gabriel Radivoy. "Terminal Alkynes Hydroamination Catalyzed by Copper Nanoparticles." Chemistry Proceedings 3, no. 1 (2020): 103. http://dx.doi.org/10.3390/ecsoc-24-08452.

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The copper-catalyzed regioselective intermolecular hydroamination of terminal alkynes with amines was accomplished. The reaction was catalyzed by copper nanoparticles supported on montmorillonite K10 (CuNPs/MK10) and afforded the desired imines in good conversions. Then, imines were transformed into the corresponding amines after treatment with NaBH3CN. The catalyst could be recovered and reutilized in several cycles.

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Chakrabarty, Manas, Sandipan Sarkar, and Yoshihiro Harigaya. "A Facile Clay-Mediated Synthesis of 3,3-diindolyl-2-indolinones from Isatins." Journal of Chemical Research 2005, no. 8 (2005): 540–42. http://dx.doi.org/10.3184/030823405774663264.

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Dry reaction of isatins (3a, 3b) with indoles (4a–e) on montmorillonite K10 clay at room temperature furnished within minutes 3,3-bis(3′-indolyl)-2-indolinones (1a–f) in high yields. 5-Nitroisatin (3c) furnished, in addition to the expected indolinone 1h, 3-hydroxy-3-(3′-indolyl)-5-nitro-2-indolinone (6), a likely intermediate to 1h.

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Gupta, Mahesh Kumar, Praveen Kumar Tandon, Mubashra Afroz, and Saumya Agrahari. "Combined Application of MMT K10 Supported Copper Oxide Nanoparticles for Complete Removal of Cr(VI) from Aqueous Solution and their Antibacterial Potential." Acta Chimica Slovenica 68, no. 3 (2021): 617–28. http://dx.doi.org/10.17344/acsi.2020.6547.

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Montmorillonite K10 (MMT K10) supported copper oxide nanoparticles (CuONPs) were synthesized by incorporating CuONPs onto the surface of MMT K10 by reducing the metal precursor with the help of hydrazine hydrate. Effects of various factors on the efficiency of composite to remove hexavalent chromium were studied to find out the optimum conditions for maximum removal. Under optimum conditions 15 mg of the synthesized nanocomposite was found capable to almost completely remove (99.9%) hexavalent chromium in 30 min from a 10 ppm aqueous chromium solution and that too in a wide range of pH from 2.

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Khedher, I., A. Ghorbel, J. M. Fraile, and J. A. Mayoral. "TiIV Exchanged K10-Montmorillonite: Characterisation and Catalytic Properties in Liquid-Phase Sulfide Oxidation." Journal of Chemical Research 2008, no. 10 (2008): 604–8. http://dx.doi.org/10.3184/030823408x360166.

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Titanium-containing K10 has been synthesised and characterised by X-ray diffraction, UV-visible reflectance, solid state NMR spectroscopy, N2 nitrogen adsorption at 77K and chemical analysis. Two different titanium species have identified with a high dispersion in K10. The first is in an isolated penta- and hexa-coordinated state and the second is in the form of polymerised hexacoordinated species, which contains Ti-O-Ti bonds. These titanium species were found to be the catalytic sites that readily interact with oxidant to offer an active and selective catalytic system for the oxidation of su

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Manas, Chakrabarty, and Mukherji Ajanta. "Eco-friendly synthesis of condensed nitrogen heterocycles A brief experience from our group." Journal of Indian Chemical Society Vol. 90, Oct 2013 (2013): 1681–94. https://doi.org/10.5281/zenodo.5791819.

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Formerly, Department of Chemistry, Bose Institute, 9311, Acharya Prafulla Chandra Road, Kolkata-700 009, India <em>E-mail </em>: chakmanas09@gmail.com Department of Chemistry, Krishnagar Government College, Krishnagar-741 101, Nadia, West Bengal, India <em>Manuscript received 05 July 2013. accepted 06 July 2013</em> In order to develop eco-friendly syntheses of condensed nitrogen heterocycles, solvent-free syntheses on solid acidic catalysts and aqueous reactions using a phase transfer catalyst (PTC) were successfully carried out. The catalysts used were (i) TLC-grade silica gel G (SiO<sub>2</

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Pai, S. G., A. R. Bajpai, A. B. Deshpande, and S. D. Samant. "Beckmann Rearrangement of Substituted Diaryl Ketoximes Using Fecl3Impregnated Montmorillonite K10." Synthetic Communications 27, no. 3 (1997): 379–84. http://dx.doi.org/10.1080/00397919708006036.

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