manganese(IV) oxide in chloroform 8 h; Reflux;

1: 1.) Mg / 2.) ether, benzene, reflux, 6 h 2: 85 percent / CrO3, pyridine / CH2Cl2 / 0.25 h View Scheme

1: With titanium(IV) isopropylate; ammonia in ethanol T=16 - 32.4°C; 16.08 - 16.16 h; 2: With sodium tetrahydroborate in ethanol T=1.4 - 19°C; 4.16 h; 3: With ammonia in ethanol; water T=21 - 26°C; Product distribution / selectivity;