Ilies L, Tsuji H, Nakamura E. Synthesis of benzo[b]siloles via KH-promoted cyclization of (2-alkynylphenyl)silanes.
Org Lett 2009;
11:3966-8. [PMID:
19658432 DOI:
10.1021/ol9015282]
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Abstract
(2-Alkynylphenyl)silanes undergo intramolecular cyclization in the presence of an excess or a subequimolar amount of potassium hydride to give a variety of new 2-substituted benzosiloles in good to excellent yields. Some of these compounds showed a high fluorescence quantum yield both in solution and in the solid state, and they also showed reversible reduction in THF.
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