1: With iron (+/-)-(N,N'-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine)dichloride in tetrahydrofuran T=-20°C; 0.25 h; 2: With LiH3BNMe2 in tetrahydrofuran T=-20 - 20°C; 16 h;

iron (+/-)-(N,N'-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine)dichloride in tetrahydrofuran T=-20°C; 0.25 h;

1: With iron (+/-)-(N,N'-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine)dichloride in tetrahydrofuran T=-20°C; 0.25 h; 2: With LiH3BNMe2 in tetrahydrofuran T=-20 - 20°C; 16 h;