Generation of 1,6-Disilahexapentaene in the Reduction of an Overcrowded Bis(bromodiaryl)butadiyne Leading to the Unexpected Formation of 2-Allenyl-1-benzosilole

When the reductive debromination of an overcrowded bis(bromodiarylsilyl)butadiyne (2) bearing Tbt and Mes groups was performed with potassium graphite, the corresponding 2-allenyl-1-benzosilole (3) was isolated as a main product. The formation of 3 was most likely interpreted in terms of the initial...

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Bibliographic Details
Published in:Chemistry letters 2004-04, Vol.33 (4), p.420-421
Main Authors: Mizuhata, Yoshiyuki, Takeda, Nobuhiro, Sasamori, Takahiro, Tokitoh, Norihiro
Format: Article
Language:English
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Summary:When the reductive debromination of an overcrowded bis(bromodiarylsilyl)butadiyne (2) bearing Tbt and Mes groups was performed with potassium graphite, the corresponding 2-allenyl-1-benzosilole (3) was isolated as a main product. The formation of 3 was most likely interpreted in terms of the initial generation of 1,6-disilahexapentaene (1) followed by the intramolecular double cyclization.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2004.420