1.1: sodium / toluene / 19 h / Reflux 2.1: n-butyllithium / diethyl ether; hexane / 20 h / 0 °C 2.2: 4 h / 0 - 20 °C 3.1: potassium fluoride; C56H51CuO2P3; 18-crown-6 ether / ethylene glycol diethyl ether / 22 h / 100 °C / Inert atmosphere 4.1: Pd0(tris(tert-butyl)phosphine)2; water; caesium carbonate / ethylene glycol dimethyl ether / 40.5 h / 80 °C 5.1: iodine cloride / dichloromethane / 2 h / 0 °C 6.1: copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride; triethylamine / tetrahydrofuran / 21 h / 20 °C 7.1: palladium 10 on activated carbon; hydrogen / ethanol / 21 h / 30 °C / 3040.2 Torr View Scheme

triethylamine in neat (no solvent) in presence of a few HF, CsF, KF, (R4N)F, (C2H5)2NH, effectless in presence of pyridinp, NaF and NH4F;

triethylamine in neat (no solvent) in presence of a few HF, CsF, KF, (R4N)F, (C2H5)2NH, effectless in presence of pyridinp, NaF and NH4F;

(Ppyz)Zr(BH4)2Cl2 in diethyl ether 2 h; Heating;