A Convenient Stereoselective Synthesis of 1,3-Dienylphosphonates and 1-En-3-ynylphosphonates and Their Phosphine Oxide Analogs
作者:Xiaoling Huang、Chunming Zhang、Xiyan Lu
DOI:10.1055/s-1995-4000
日期:1995.7
Ethynylphosphonates (or phosphine oxides) react with a lithium halide in acetic acid at 70°C to yield (Z)-2-halovinylphosphonates (or phosphine oxides), which give (1Z,3E)-dienylphosphonates and (1Z)-en-3-ynylphosphonates (phosphine oxides) after coupling with alkenes and alkynes, respectively, in the presence of a palladium catalyst.