Thia-Wittig-like Reactions as a New Route for the Stereoselective Synthesis of (<i>Z</i>)-Fluoroalkenoates

Stereoselective syntheses of (<i>Z</i>)-fluoroalkenoates <b>3a</b>−<b>g</b> have been developed in three steps from the readily available fluorosulfide <b>5</b> and aldehydes. This preparation, involving a Durst reaction, was highly stereoselective and led to fluoroalkenes in 50−60% overall yields, without purification of intermediates.