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2.024 Aktuelle Fachpublikationen zum Thema temperaturerss
29.10.2014 | Luis Martínez-Suárez; Johannes Frenzel; Dominik Marx, Physical Chemistry Chemical Physics, 2014
Methanol synthesis is one of the landmarks of heterogeneous catalysis due to the great industrial significance of methanol as a clean liquid fuel and as a raw material for industry. Understanding in atomistic detail the properties of the underlying metal/oxide catalyst materials as a function of ...
28.10.2014 | S. Ghogare, Ramesh; Rajeshwari, K.; Venkat Narsaiah, A., Letters in Organic Chemistry, 2014
Abstract: Environmental friendly multicomponent protocol for the preparation of α-amino nitriles has been developed. In this methodology, glycerol was demonstrated as an efficient and alternative solvent for organic synthesis. After the reaction, glycerol was recovered and reused for ...
28.10.2014 | Rajaram Bal; Astha Shukla; Rajib K Singha; Takehiko Sasaki, Green Chemistry, 2014
We have developed a new synthesis strategy to prepare Pt nanoparticles with size between 2-5 nm supported on CeO2 nanoparticle with size between 30-60 nm by hydrothermal method in presence of surfactant cetyltrimethyl ammonium bromide( CTAB) and polymer (PVP). It was found that the catalyst is ...
24.10.2014 | Qian Liu, Baokun Qiao, Kek Foo Chin, Choon‐Hong Tan, Zhiyong Jiang, Advanced Synthesis & Catalysis, 2014
Abstract An asymmetric Michael addition of 5H‐oxazol‐4‐ones to vinyl sulfones has been developed. In the presence of 10 mol % of quinine‐based benzyl‐substituted thiourea as catalyst at 0 °C, the products could be obtained with excellent enantio‐ and diastereoselectivity (up to>99 % ee ...
23.10.2014 | Takayuki Yakura, Akihiro Yamada, Narumi Noda, Tomoya Fujiwara, Hisanori Nambu, ChemInform, 2014
Abstract Treatment of primary and secondary alcohols with a catalytic amount of iodobenzamide in the presence of oxone yields the corresponding carbonyl compounds.
23.10.2014 | Fatemeh Rajabi, Werner R. Thiel, ChemInform, 2014
Abstract This method gives the coupling products in high yields even at low catalyst loadings.
23.10.2014 | Dhananjay R. Petkar, Brijesh S. Kadu, Rajeev C. Chikate, ChemInform, 2014
Abstract Fe‐Ni nanoparticles are used as catalyst for the selective hydrogenation of nitroarenes (I) to anilines (II) as well as cinnamic ester (III) to 3‐phenylpropanoate (IV).
22.10.2014 | Lu Li, Xiaoyue Mu, Wenbo Liu, Xianghua Kong, Shizhao Fan, Zetian Mi, Chao‐Jun Li, Angewandte Chemie International Edition, 2014
Abstract The thermal catalytic activity of GaN in non‐oxidative alkane dehydroaromatization has been discovered for the first time. The origin of the catalytic activity was studied experimentally and theoretically. Commercially available GaN powders with a wurtzite crystal structure showed ...
21.10.2014 | Yao-Feng Wang; Jiashen Qiu; Dejie Kong; Yongtao Gao; Feipeng Lu; Pran Gopal Karmaker; fuxue chen, Organic & Biomolecular Chemistry, 2014
The direct electrophilic α-cyanation of β-keto esters and amides has been developed using hypervalent iodine benziodoxole-derived cyano reagent. It accomplishes within 10 min without any catalyst in DMF at room temperature. Thus, the highly functionallized quaternary carbon-centered nitriles were ...
18.10.2014 | Leonardo Tecchio, Pablo Marín, Fernando V. Díez, Salvador Ordóñez, Journal of Chemical Technology & Biotechnology, 2014
Abstract Background The oxidation of NO to NO2 is a key step in environmental pollution abatement techniques, such as the “fast‐SCR” or the diesel engines catalytic traps. In both cases, the conversion of an important fraction of NO into NO2 is a key step. In this work, two commercially ...