benzoyl chloride 1.) Et2O, from -50 deg C to RT, 1.5 h, 2.) Et2O, from -60 deg C to RT, 0.5 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

1.) Et2O, from -50 deg C to RT, 1.5 h, 2.) Et2O, from -60 deg C to RT, 0.5 h; Yield given. Multistep reaction. Yields of byproduct given;

water in anhydrous butyl ether 1) -60 deg C, 1h, 2) r.t., 4h; Yield given;

hydrogenchloride in diethyl ether 1) -34 deg C, 2) r.t., 30 min; Yield given. Title compound not separated from byproducts;