methyl-ethyl phosphite; sulfuric acid; bis(1,5-cyclooctadiene)nickel (0) 1.) DMF, -20 to 60 deg C, 3 h; 60 deg C, 20 h; Yield given. Multistep reaction;

methyl-ethyl phosphite; sulfuric acid; bis(1,5-cyclooctadiene)nickel (0) 1.) THF, from -20 deg C to 20 deg C; further temperatures, catalysts and solvents; MechanismProduct distribution;