Journal
TETRAHEDRON
Volume 57, Issue 52, Pages 10241-10246Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(01)01066-3
Keywords
sugar allenes; biscobaltoctacarbonyl; hydrosilylation
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Stereoselective introduction of allenyl group to glycals has been developed with propargyltrimethylsilane under the catalysis of a Lewis acid to produce largely the a-sugar allenes in good yields. The subsequent hydrosilylations of these sugar allenes were catalyzed by biscobaltoctacarbonyl to obtain the corresponding vinylsilanes. Stereochemical selectivity is also discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.
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