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Decarboxylative Sulfonylation of Conjugated β,γ-Unsaturated Carboxylic Acidsa
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Condition B: 1 (1.5 equiv.), 6 (0.3 mmol, 1.0 equiv.), Cu(OTf)2 (10 mol %), bpy (10 mol %), Na2CO3 (1.1 equiv.), dioxane, 90 °C. Isolation yields.
Z/E ratio determined by 1H-NMR of the crude reaction mixture.
