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Using stereoretention for the synthesis of E-macrocycles with ruthenium-based olefin metathesis catalysts.

Tonia S AhmedT Patrick MontgomeryRobert H Grubbs
Published in: Chemical science (2018)
The synthesis of E-macrocycles is achieved using stereoretentive, Ru-based olefin metathesis catalysts supported by dithiolate ligands. Kinetic studies elucidate marked differences in activity among the catalysts tested, with catalyst 4 providing meaningful yields of products in much shorter reaction times than stereoretentive catalysts 2 and 3. Macrocycles were generated with excellent selectivity (>99% E) and in moderate to high yields (47-80% yield) from diene starting materials bearing two E-configured olefins. A variety of rings were constructed, ranging from 12- to 18-membered macrocycles, including the antibiotic recifeiolide.
Keyphrases
  • highly efficient
  • metal organic framework
  • transition metal
  • wastewater treatment
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  • case control
  • structural basis