4.8 Article

Dynamic Thiol Exchange with β-Sulfido-α,β-Unsaturated Carbonyl Compounds and Dithianes

Journal

ORGANIC LETTERS
Volume 14, Issue 18, Pages 4714-4717

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol301781u

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Funding

  1. National Institute of Health [R01GM065515]
  2. Welch Foundation [F-1151]
  3. NSF [CHE-1212971]
  4. Division Of Chemistry
  5. Direct For Mathematical & Physical Scien [1212971] Funding Source: National Science Foundation

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A reversible covalent bond exchange of thiols, beta-sulfido-alpha,beta-unsaturated carbonyls, and dithianes has been studied in DMSO and D2P/DMSO mixtures. The equilibrium between thiols and beta-sulfido-alpha,beta-unsaturated carbonyls is obtained within a few hours, while the equilibration starting with the beta-dithiane carbonyls and thiols requires a few days. This time scale makes the system ideal for utilization in dynamic combinatorial chemistry.

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