Abstract
A practical synthesis of (Z)-2-bromo-2-CF3-vinyl phenyl sulfide from 2-CF3-vinyl phenyl sulfide was achieved using bromine (Br2) in the presence of LiBr and LiOAc in AcOH in one flask. This method affords a stereodefined product in high yield under mild conditions. The synthetic application of the product was briefly examined, providing a wide range of Sonogashira cross-coupling products using terminal acetylenes as a coupling partner.
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