1: With (DHQD)2AQN in diethyl ether T=-78°C; 6 h; 2: With water Further stages. Title compound not separated from byproducts.;

1: With (DHQD)2AQN in diethyl ether T=-78°C; 6 h; 2: With water Further stages. Title compound not separated from byproducts.;