Multi-step reaction with 7 steps
1: 92 percent / t-BuLi / tetrahydrofuran
2: 93 percent / I2, H5IO6, aq. AcOH, H2SO4 / CCl4
3: 89 percent / bis(triphenylphosphine)palladium(II) dichloride, copper(I) iodide, triethylamine / tetrahydrofuran / 70 °C
4: 71 percent / potassium carbonate, bis(dibenzylideneacetone)palladium(O), triphenylphosphine, copper(I) iodide / tetrahydrofuran; methanol
5: 86 percent / bis(triphenylphosphine)palladium(II) dichloride, copper(I) iodide, triethylamine / tetrahydrofuran / 70 °C
6: 42 percent / potassium carbonate, bis(dibenzylideneacetone)palladium(O), triphenylphosphine, copper(I) iodide / tetrahydrofuran; methanol
7: 85 percent / bis(triphenylphosphine)palladium(II) dichloride, copper(I) iodide, triethylamine / tetrahydrofuran / 70 °C
With
bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; sulfuric acid; iodine; tert.-butyl lithium; potassium carbonate; acetic acid; periodic acid; triethylamine; triphenylphosphine; bis(dibenzylideneacetone)-palladium(0);
In
tetrahydrofuran; methanol; tetrachloromethane;
DOI:10.1016/S0040-4039(99)00463-3