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Preparation of Thermosensitive Hollow Imprinted Microspheres via Combining Distillation Precipitation Polymerization and Thiol‐ene Click Chemistry

12-12-2014 | Cong Guo, Bing Wang, Juanjuan Shan, Chinese Journal of Chemistry, 2014

Abstract Hollow molecular imprinted polymer microspheres were prepared by distillation precipitation polymerization with (S)‐(+)‐ibuprofen (S‐IBF) as template molecule and acrylamide (AM) as functional monomer. Using the silicon dioxide (SiO2, 180 nm) modified by 3‐(trimethoxysilyl)propyl ...

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A Bowl‐Shaped Circular Trinuclear Helicate Generated from a TiO4N2 Motif by a Multicomponent Self‐Assembly Approach

09-12-2014 | Pierre Mobian, Nathalie Baradel, Nathalie Kyritsakas, Georges Khalil, Marc Henry, Chemistry - A European Journal, 2014

Abstract The synthesis of a bowl‐shaped trinuclear circular titanium‐based helicate is reported. The strategy allowing access to this neutral architecture is based on a multicomponent self‐assembly approach in which the ligands involved in the process are a bis‐biphenol strand and 2,2′‐ ...

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Asymmetric Carbamoyl Anion Additions to Chiral N-Phosphonyl Imines via the GAP Chemistry Process and Stereoselectivity Enrichments

09-12-2014 | Cole W. Seifert; Suresh Pindi; Guigen Li, The Journal of Organic Chemistry, 2014

Carbamoyl anions were found to smoothly react with chiral N-phosphonyl imines in toluene at −78 °C to r.t. using LiHMDS as the base. Group-assisted purification (GAP) has been utilized to give the pure amides without using column chromatography or recrystallization. The asymmetric reaction ...

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Determination of copper, nickel, manganese and cadmium ions in aqueous samples by flame atomic absorption spectrometry after simultaneous coprecipitation with Co(OH)2

07-12-2014 | Author(s): Sayed Zia Mohammadi , Tayebeh Shamspur , Yar Mohammad Baghelani, Arabian Journal of Chemistry, 2014

Publication date: Available online 5 December 2014 Source:Arabian Journal of Chemistry Author(s): Sayed Zia Mohammadi , Tayebeh Shamspur , Yar Mohammad Baghelani A separation-preconcentration procedure was developed for determination of trace amounts of copper, nickel, manganese and ...

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Direct synthesis of mesoporous molecular sieves of Ni-SBA-16 by internal pH adjustment method and its performance for adsorption of toxic Brilliant Green dye

07-12-2014 | Author(s): Asma Tufail Shah , Muhammad Imran Din , Farva Nausheen Kanwal , Muhammad Latif Mirza, Arabian Journal of Chemistry, 2014

Publication date: Available online 5 December 2014 Source:Arabian Journal of Chemistry Author(s): Asma Tufail Shah , Muhammad Imran Din , Farva Nausheen Kanwal , Muhammad Latif Mirza An ordered mesoporous novel material Ni-SBA-16 has been synthesized by internal pH-adjustment method. ...

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Toward a New Family of Bifunctional Organoiron Dendrimers: Facile Synthesis, Redox, and Photophysical Fingerprints

03-12-2014 | Alaa S. Abd‐El‐Aziz, Christian Agatemor, Nola Etkin, Rabin Bissessur, Macromolecular Chemistry and Physics, 2014

Multifunctional macromolecules continue to attract attention. Here, three generations of a new family of bifunctional organoiron dendrimers are reported, which are synthesized from a redox‐active organoiron complex, η6‐dichlorobenzene‐η5‐cyclopentadienyl‐iron(II). The facile chemistry of the ...

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Phytochemical fabrication and characterization of silver nanoparticles by using Pepper leaf broth

30-11-2014 | Author(s): K. Mallikarjuna , N. John Sushma , G. Narasimha , L. Manoj , B. Deva Prasad Raju, Arabian Journal of Chemistry, 2014

Publication date: December 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 6 Author(s): K. Mallikarjuna , N. John Sushma , G. Narasimha , L. Manoj , B. Deva Prasad Raju The Pepper leaves extract acts as a reducing and capping agent in the formation of silver nanoparticles. A ...

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Photo oxidative degradation of azure-B by sono-photo-Fenton and photo-Fenton reagents

30-11-2014 | Author(s): Prahlad Vaishnave , Anil Kumar , Rakshit Ameta , P.B. Punjabi , Suresh C. Ameta, Arabian Journal of Chemistry, 2014

Publication date: December 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 6 Author(s): Prahlad Vaishnave , Anil Kumar , Rakshit Ameta , P.B. Punjabi , Suresh C. Ameta A model for the decomposition of azure-B by photo-Fenton reagent in the presence of ultrasound in ...

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Nano-Silica and SiO2/CaCO3 Nanocomposite Prepared from Semi-Burned Rice Straw Ash as Modified Papermaking Fillers

30-11-2014 | Author(s): Fatma A. Morsy , Said M. El-Sheikh , Ahmed Barhoum, Arabian Journal of Chemistry, 2014

Publication date: Available online 24 November 2014 Source:Arabian Journal of Chemistry Author(s): Fatma A. Morsy , Said M. El-Sheikh , Ahmed Barhoum Silica (SiO2) nanoparticles and silica/calcium carbonate (SiO2/CaCO3) core-shell nanocomposites were prepared by sol-gel technique as ...

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Combining Organometallic Reagents, the Sulfur Dioxide Surrogate DABSO, and Amines: A One‐Pot Preparation of Sulfonamides, Amenable to Array Synthesis

27-11-2014 | Alex S. Deeming, Claire J. Russell, Michael C. Willis, Angewandte Chemie International Edition, 2014

Abstract We describe a method for the synthesis of sulfonamides through the combination of an organometallic reagent, a sulfur dioxide equivalent, and an aqueous solution of an amine under oxidative conditions (bleach). This simple reaction protocol avoids the need to employ sulfonyl chloride ...

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