zinc(II) chloride T=260°C;

sodium hydroxide

lithium aluminium tetrahydride; boron trichloride 1.) CH2Cl2, 0.2 h, 2.) Et2O, 30 min; Yield given. Multistep reaction;

2-propyl-[1,3]dioxane; lithium aluminium tetrahydride; boron trichloride 1.) CH2Cl2, 0.2 h, 2.) Et2O, 30 min; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

1: pyridine; thionyl chloride View Scheme