sulfur dioxide; water 1.) ether, -60--50 deg C, 2.) ether, RT; Yield given. Multistep reaction. Further byproducts given. Yields of byproduct given;

sulfur dioxide; water 1.) ether, -60--50 deg C, 2.) ether, RT; Multistep reaction. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;