bromine; iodine 24 h; Ambient temperature;

1: 98 percent / 1,3-bis(triphenylphosphanyl)propanenickel(II) chloride / diethyl ether / Heating 2: 82 percent / bromine; iodine / 24 h / 20 °C View Scheme

1: 87 percent / <1,3-bis(diphenylphosphino)propane>Cl2Ni / diethyl ether / 24 h / Heating 2: 90 percent / Br2, I2 / 24 h / Ambient temperature View Scheme

1,1'-bis-(diphenylphosphino)ferrocene; copper(I) bromide dimethylsulfide complex; Pd[P(o-tol)3]2; caesium carbonate in tetrahydrofuran; 1-methyl-pyrrolidin-2-one T=50°C; 5 h; Inert atmosphereMolecular sieve;

tetrakis(triphenylphosphine) palladium(0); sodium carbonate in toluene 72 h; Heating;