1: With sodium hydride in tetrahydrofuran; mineral oil T=20°C; 1 h; Inert atmosphere; 2: With naphthalene; sodium in tetrahydrofuran; mineral oil T=20°C; 12 h; Inert atmosphere; 3: With water in tetrahydrofuran; mineral oil Inert atmosphere;
1: With sodium hydride in tetrahydrofuran; mineral oil T=20°C; 1 h; Inert atmosphere; 2: With naphthalene; sodium in tetrahydrofuran; mineral oil T=20°C; 12 h; Inert atmosphere; 3: With water in tetrahydrofuran; mineral oil Inert atmosphere;