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Ryutaro Wakabayashi, Kazufumi Kawahara and Kazuyuki Kuroda Cover Picture: Nonhydrolytic Synthesis of Branched Alkoxysiloxane Oligomers Si[OSiH(OR)2]4 (R=Me, Et) (Angew. Chem. Int. Ed. 31/2010) Angewandte Chemie International Edition 49

Version of Record online: 11 JUN 2010 | DOI: 10.1002/anie.201003228

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Discrete alkoxysiloxane oligomers were synthesized by nonhydrolytic heterocondensation reactions between alkoxysilanes and chlorosilanes. In their Communication on page 5273 ff., K. Kuroda and co-workers show that the combination of the Lewis acid catalyst bismuth trichloride and alkoxysilanes that can form stable carbocations play an important role in the formation of siloxane bonds prior to the occurrence of other competing side reactions. The photograph of bismuth metal was provided by Dr. Ryoji Tanaka.

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