Regioselective Synthesis of (E)-5-(Tributylstannylmethylidene)-5H-furan-2-ones and (E)-3-(Tributylstannylmethylidene)-3H-isobenzofuran-1-ones: Easy Access to γ-Alkylidenebutenolide and Phthalide Skeletons - Duchêne, Alain; Thibonnet, Jérôme; Parrain, Jean-Luc; Anselmi, Elsa; Abarbri, Mohamed (Synthesis, 2007)