1: 790 mg / ammonia / methanol / Ambient temperature 2: 12 percent / 1 M lithium triethylborohydride / tetrahydrofuran / 16 h / Ambient temperature View Scheme

1: 790 mg / ammonia / methanol / Ambient temperature 2: 58 percent / 1 M lithium triethylborohydride / tetrahydrofuran / 16 h / Ambient temperature View Scheme