Syntheses of 1,3-Disilaindanes, 1,4-Disilatetralines, and 1,3-Disila-1,3-dihydroisobenzofuranes Using Cobalt-Catalyzed [2+2+2] Cycloadditions

A simple catalytic system for [2+2+2] alkyne cycloadditions consisting of cobalt(II) iodide and zinc powder in acetonitrile was applied to the direct synthesis of hydroxyalkyl-substituted 1,3-disilaindanes, 1,4-disilatetralines, and 1,3-disila-1,3-dihydroisobenzofuranes starting from silicon-contain...

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Bibliographic Details
Published in:Organometallics 2007-11, Vol.26 (23), p.5722-5723
Main Authors: Doszczak, Leszek, Tacke, Reinhold
Format: Article
Language:English
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Summary:A simple catalytic system for [2+2+2] alkyne cycloadditions consisting of cobalt(II) iodide and zinc powder in acetonitrile was applied to the direct synthesis of hydroxyalkyl-substituted 1,3-disilaindanes, 1,4-disilatetralines, and 1,3-disila-1,3-dihydroisobenzofuranes starting from silicon-containing diynes and unprotected propargyl alcohols. Silicon-containing diynes were efficiently coupled with propargyl alcohols with a terminal or internal monoyne moiety. The method reported allows efficient, one-step syntheses of the title compounds.
ISSN:0276-7333
1520-6041
DOI:10.1021/om700684j