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6.729 Aktuelle Fachpublikationen zum Thema temperature

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Catalyst-Free Aldol Reaction in a Water Medium

04.05.2016 | Yao, Weirong; Cui, Yanli; Wang, Peipei; Mao, Yangyi, Letters in Organic Chemistry, 2016

Abstract: Background: With growing interest in developing environmentally friendly reactions and atom-economic processes in recent years, the utilization of water as a solvent has attracted a great deal of attention. This is not only for its low-cost, safe and environmentally benign nature, ...

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Preparation and characterization of gold nanoparticles prepared with aqueous extracts of Lamiaceae plants and the effect of follow-up treatment with atmospheric pressure glow microdischarge

01.05.2016 | Author(s): Anna Dzimitrowicz, Piotr Jamróz, George C. diCenzo, Iwona Sergiel, Tomasz Kozlecki, Pawel Pohl, Arabian Journal of Chemistry, 2016

Publication date: Available online 30 April 2016 Source:Arabian Journal of Chemistry Author(s): Anna Dzimitrowicz, Piotr Jamróz, George C. diCenzo, Iwona Sergiel, Tomasz Kozlecki, Pawel Pohl The unique properties of gold nanoparticles (AuNPs) make them attractive for use in a ...

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Polyelectrolytes with tetrazole pendant groups useful in the stabilization of Au and Ag nanoparticles

30.04.2016 | M. Caldera‐Villalobos, Ana M. Herrera‐González, J. García‐Serrano, M. A. Martins‐Alho, M. I. Montalvo‐Sierra, Journal of Applied Polymer Science, 2016

ABSTRACT Stabilization of metallic nanoparticles is a challenge of enormous dimensions because the nanosize nanoparticles are not stable by themselves and therefore they tend to coalesce, forming large agglomerates causing the loss of the properties of individual nanoparticles. In this work, ...

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s‐Triazine‐Based Functional Discotic Liquid Crystals:Synthesis, Mesomorphism and Photoluminescence

28.04.2016 | Bhyranalyar N Veerabhadraswamy, Hashambi K Dambal, Doddamane S Shankar Rao, Channabasaveshwar Veerappa Yelamaggad, ChemPhysChem, 2016

A new series of C3‐symmetric, π‐conjugated molecules were designed, synthesized and characterized. They were, derived from electron‐accepting s‐triazine appended covalently to electron‐donating styrylbenzene arms, readily prepared, in excellent yields with high purity, by three‐fold condensation ...

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Conversion of Xylose to Furfuryl Alcohol and 2‐Methylfuran in a Continuous Fixed‐Bed Reactor

27.04.2016 | Jinglei Cui, Jingjing Tan, Xiaojing Cui, Yulei Zhu, Tiansheng Deng, Guoqiang Ding, Yongwang Li, ChemSusChem, 2016

Abstract An efficient process was designed for the synthesis of furfuryl alcohol and 2‐methylfuran from xylose using a continuous fixed‐bed reactor over a catalyst combining Hβ zeolite and Cu/ZnO/Al2O3 in γ‐butyrolactone (GBL)/water as solvent. The cooperative effect of Hβ zeolite and GBL ...

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ChemInform Abstract: Uncatalyzed, Highly Stereoselective Addition of α‐Morpholinostyrene to 3‐Nitro‐2‐(trihalomethyl)‐2H‐chromenes. Synthesis of trans—cis‐ and trans—trans‐3‐Nitro‐4‐phenacyl‐(2‐trihalomethyl)chromanes.

27.04.2016 | Vladislav Yu. Korotaev, Ivan V. Kotovich, Alexey Yu. Barkov, Igor B. Kutyashev, Mikhail I. Kodess, Vyacheslav Ya. So ..., ChemInform, 2016

Abstract The diastereoselectivity of the title addition depends on the reaction temperature.

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Shape-selective Synthesis of Sn(MoO4)2 Nanomaterials for Catalysis and Supercapacitor Applications

27.04.2016 | K Sakthikumar; Sivasankara Rao Ede; Soumya Ranjan Mishra; Subrata Kundu, Dalton Transactions, 2016

Size and shape-selective Sn(MoO4)2 nanomaterials has been synthesized for the first time using a simple hydrothermal route by the reaction of Sn(II) chloride salt with sodium molybdate in CTAB micellar media under stirring at 60 oC temperature for total three hours. Needle-like and flake-like ...

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Efficient Preparation of TMSCCl2Br and Its Use in Dichlorocyclopropanation of Electron‐Deficient Alkenes

26.04.2016 | Darren S. Lee, María Jesús Durán‐Peña, Laurence Burroughs, Simon Woodward, Chemistry - A European Journal, 2016

Abstract The reaction of excess TMSCl and LiCCl2Br at low temperature is a technically simple high yield route to TMSCCl2Br. The latter is a stable source of the dichlorobromomethide carbanion, which undergoes 1,4‐addition with cyclic nitroalkenes and (E)‐fumarates leading to ...

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Mn2MnReO6: Synthesis and Magnetic Structure Determination of a New Transition-Metal-Only Double Perovskite Canted Antiferromagnet

26.04.2016 | Man-Rong Li; Jason P. Hodges; Maria Retuerto; Zheng Deng; Peter W. Stephens; Mark C. Croft; Xiaoyu Deng; Gabriel Kot ..., Chemistry of Materials, 2016

Transition-metal-only double perovskite oxides (A2BB′O6) are of great interest due to their strong and unusual magnetic interactions; only one compound, Mn2FeReO6, was reported in this category to date. Herein, we report the second transition-metal-only double perovskite, Mn2MnReO6, prepared at ...

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Nanodendritic Platinum Supported on γ‐Alumina for Complete Benzene Oxidation

26.04.2016 | Jiaqi Li, Yan Feng, Shengpeng Mo, Hui Liu, Yunfa Chen, Jun Yang, Particle & Particle Systems Characterization, 2016

The morphology of the platinum (Pt) nanoparticles has a significant effect on their activity for the catalytic oxidation of the volatile organic compounds (VOCs). In this work, the preparation of the dendritic and spherical Pt by a solution‐based approach is reported, which is supported on ...

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