4.8 Article

Structure and Reactivity of an Isolable Seven-Membered-Ring trans-Alkene

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 14, Pages 4295-4298

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201410752

Keywords

alkenes; cycloheptenes; medium-ring compounds; silicon; strained molecules

Funding

  1. United States National Science Foundation [CHE-1362709]
  2. National Science Foundation Graduate Research Fellowship [DGE-1342536]
  3. Division Of Chemistry
  4. Direct For Mathematical & Physical Scien [1362709] Funding Source: National Science Foundation

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The isolation and characterization of a trans-oxasilacycloheptene is reported. Single-crystal X-ray crystallographic studies indicate a high level of strain and deviation from ideal geometry. Reactions with several electrophiles demonstrated the nucleophilicity of the C=C double bond, affording oxasilacycloheptane and tetrahydrofuran products as single diastereomers.

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