1: diethyl ether 2: palladium/calcium carbonate; ethyl acetate / Hydrogenation.Behandlung der Reaktionsloesung mit wss.Salzsaeure View Scheme

in benzene T=80°C; 576 h; Irradiation; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;