4.4 Article

Reactivity of Seven-Membered-Ring trans-Alkenes with Electrophiles

Journal

SYNLETT
Volume 28, Issue 18, Pages 2478-2482

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0036-1588451

Keywords

alkenes; conjugate addition; cycloheptene; strained molecules; silicon

Funding

  1. National Science Foundation [CHE-1362709]
  2. Margaret Strauss Kramer Fellowship from the NYU Department of Chemistry
  3. Direct For Mathematical & Physical Scien
  4. Division Of Chemistry [1362709] Funding Source: National Science Foundation

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Seven-membered- ring trans-alkenes containing a silicon-oxygen bond reacted rapidly with oxygen gas and electron-deficient alkenes and alkynes to give products with high selectivity. Addition of an electron-donating substituent or incorporating additional strain increased the reactivity by over two orders of magnitude. These results indicate that release of strain is not the only driving force for reactivity.

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