1: 2-(methoxymethoxy)octadecanal With pyrrolidine in toluene; acetonitrile T=50°C; 3 h; 2: 3-iodo-2-(methoxymethyloxy)-1-propene in acetonitrile T=80°C; 18 h;

lithium diisopropyl amide 1) THF, -78 deg C, 0.5h, 2a) -78 deg C, 0.5h, 2b) RT, 6h; Yield given. Multistep reaction;