hydrazine hydrate in ethanol 0.5 h; Heating;

1.1: i-PrMgCl*LiCl / tetrahydrofuran / 0.25 h / 20 °C 1.2: 82 percent / tetrahydrofuran / 4 h / -35 °C 2.1: 91 percent / hydrazine monohydrate / ethanol / 0.5 h / Heating View Scheme

1: N,N-diethyl-aniline; POCl3 2: methanol View Scheme

methanol