potassium permanganate; sodium periodate; lt;S-2-(dimethylamino)-3-phenylpropylgt;diphenylphosphinephe; nickel dichloride 1.) ether, a) -78 deg C, b) -20 deg C, 24 h, 2.) tert-butyl alcohol, water; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

potassium permanganate; sodium periodate; lt;S-2-(dimethylamino)-3-phenylpropylgt;diphenylphosphinephe; nickel dichloride 1.) ether, a) -78 deg C, b) -20 deg C, 24 h, 2.) tert-butyl alcohol, water; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;