4.8 Article

Catalytic C-C Cleavage/Alkyne-Carbonyl Metathesis Sequence of Cyclobutanones

Journal

ORGANIC LETTERS
Volume 22, Issue 10, Pages 3993-3999

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c01317

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Funding

  1. National Natural Science Foundation of China [21602015, 21703195]
  2. Jilin Provincial 13th Five Year Plan Science and Technology Project [JJKH20181022KJ]
  3. Talent Development Fund of Jilin Province

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A ring-opening/alkyne - carbonyl metathesis sequence of alkyne-tethered cyclobutanones catalyzed by AgSbF6 is realized for the first time to furnish multisubstituted naphthyl ketones under mild conditions. A range of substrates decorated with various substituents at different positions were all well accommodated. Preliminary mechanistic studies show that silver salt acted as a Lewis acid to facilitate both C-C cleavage of the cyclobutanone moiety and the subsequent metathesis between C=O and C C bonds.

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