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Keywords:

  • Lewis acids;
  • nonhydrolytic synthesis;
  • oligomerization;
  • silanes
Thumbnail image of graphical abstract

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.