Advanced Synthesis & Catalysis

Cover image for Vol. 357 Issue 1

Editor: Joe P. Richmond, Chairman of the Editorial Board: Ryoji Noyori

Impact Factor: 5.542

ISI Journal Citation Reports © Ranking: 2013: 2/71 (Chemistry Applied); 5/58 (Chemistry Organic)

Online ISSN: 1615-4169

Associated Title(s): Angewandte Chemie International Edition, Asian Journal of Organic Chemistry, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemCatChem, European Journal of Organic Chemistry

357_01/2015Cover Picture: Rhodium Nanoflowers Stabilized by a Nitrogen-Rich PEG-Tagged Substrate as Recyclable Catalyst for the Stereoselective Hydrosilylation of Internal Alkynes (Adv. Synth. Catal. 1/2015)

The front cover picture, provided by Pleixats, Shafir and co-authors, illustrates the stereoselective hydrosilylation of internal alkynes catalyzed by flower-shaped rhodium nanoparticles prepared in water using a nitrogen-rich stabilizer. The method provides nearly quantitative yields of a wide range of vinylsilanes using 0.5 mol% Rh both under solvent-free conditions (neat silane) and in solution. The pure product is obtained after a simple extraction with Et2O, and the catalyst was recycled up to six times. The exceptional air- and water-tolerance of the new system was traced to the reluctance of the Rh nanoflowers to catalyze the hydrolytic oxidation of the Si-H bond. Details can be found in the full paper on pages 89–99 (W. Guo, R. Pleixats, A. Shafir, T. Parella, Adv. Synth. Catal.­ 2015, 357, 89–99; DOI: 10.1002/adsc.201400740).

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