Synthesis of Silaphenalenes by Ruthenium‐Catalyzed Annulation between 1‐Naphthylsilanes and Internal Alkynes through CH Bond Cleavage |
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Authors: | Dr Yuichiro Tokoro Kengo Sugita Prof?Dr Shin‐ichi Fukuzawa |
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Institution: | Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1‐13‐27 Kasuga, Bunkyo‐ku, Tokyo, 112‐8551 (Japan) |
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Abstract: | Ruthenium‐catalyzed annulation of 1‐naphthylsilanes with internal alkynes afforded silaphenalenes through cleavage of the C?H bond at the 8‐position of the naphthalene. RuH2(CO){P(p‐FC6H4)3}3] efficiently catalyzed the reaction. The use of 1‐naphthyldiphenylsilane as a substrate resulted in a better yield of the annulation product compared to the use of silanes with alkyl groups on the silicon atom. Internal alkynes with both aryl and alkyl groups were tolerated in this reaction. |
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Keywords: | alkynes C H bond activation heterocyclic compounds ruthenium silicon |
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