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DOI: 10.1055/s-0030-1258816
Hydrosilylation-Metathesis Sequence Leading to 1-Silaindenes
Publikationsverlauf
Publikationsdatum:
08. Oktober 2010 (online)

Abstract
1-Silaindenes are prepared starting from (2-vinylphenyl)hydrosilanes and alkynes through a ruthenium-catalyzed hydrosilylation-ring-closing-metathesis sequence. The method is successfully applied to the synthesis of molecules containing multiple silaindene units.
Key words
hydrosilylation - metathesis - ruthenium - homogeneous catalysis - ring closure
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References and Notes
Present address: Department of Applied Chemistry, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan.
9The regioselectivity of the trans-hydrosilylation was so high that other isomers were scarcely found in the crude reaction mixtures.
10Replacement of the dimethylsilylene (-SiMe2-) moiety of 1a with diethylsilylene (-SiEt2-) moiety significantly retarded the hydrosilylation (6%) due to severe steric congestion around the silicon.