1: 81 percent / hydrogen / PtO2 / dioxane / 20 h / 760 Torr / Ambient temperature 2: 1.) LiH2NBH3, 2.) Na2CO3 / 1.) THF, hexane, room temperature, 3 h, 2.) THF, hexane, water, CHCl3, room temperature, 1 h 3: 85 percent / molybdenum hexacarbonyl / acetonitrile; H2O / 3 h / Heating 4: 42 percent / triphenylphosphine, carbon tetrabromide / acetonitrile / 0.75 h / 70 °C 5: 96 percent / trifluoroacetic acid / CH2Cl2 / 3 h / Ambient temperature 6: 97 percent / CHCl3 / 72 h / Heating View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 1.) magnesium, 2.) (Ph₃P)4Pd / 1.) THF, 2.) THF, benzene, room temperature, 10 h<br />2: 1.) oxalyl chloride, dimethyl sulfoxide, 2.) triethylamine / 1.) CH₂Cl₂, -78 deg C, 2.) CH₂Cl₂, -78 deg C<br /> <br /> &nbsp;