Synthesis of β-Halobutenolides and Their Pd(0)-Catalyzed Cross-Coupling Reactions with Terminal Alkynes and Organozinc Reagents. A General Route to β-Substituted Butenolides and Formal Synthesis of cis-Whisky Lactone

Shengming. Ma∗, Zhangjie. Shi, Zhanqian. Yu, Tetrahedron 1999, 55, 12137-12148.