1-octadecanol; 4 A molecular sieve; oxygen; Ni(dmp)2 in 1,3,5-trimethyl-benzene T=100°C; P=3040 Torr; 8 h;

sec.-butyllithium; lithium bromide 1.) THF/ether/pentane, -115 deg C, 0.5 h, 2.) THF/ether/pentane, -115 deg C, 1 h; Yield given. Multistep reaction;

sodium acetate; sodium iodide; zinc in acetic acid