hydrogenchloride; palladium 10 on activated carbon; hydrogen in methanol; water T=22°C; 48 h;

<b>Multi-step reaction with 4 steps<br /> </b>2: triethylamine, methane sulfonylchloride / CH₂Cl₂ / 1.) 0 deg C, 5 min, 2.) -20 deg C, 2 d<br />3: 1.) rose bengal, bis(triethyl ammonium) salt, oxygen, 2.) lithium tris-tert-butoxyaluminohydride / 1.) CCl₄, methanol, 20 min, irrad., 2.) THF, -78 deg C, 20 min<br />4: 1.) BH₃*DMS, 2.) 6 M HCl / 1a.) THF, RT, 20 min, 1b.) reflux, 30 min, 2.) reflux, 30 min<br /> <br /> &nbsp;