Abstract

A reversible covalent bond exchange of thiols, β-sulfido-α,β-unsaturated carbonyls, and dithianes has been studied in DMSO and D(2)O/DMSO mixtures. The equilibrium between thiols and β-sulfido-α,β-unsaturated carbonyls is obtained within a few hours, while the equilibration starting with the β-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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