1: tetrahydrofuran-3-ol With sodium hydride in tetrahydrofuran T=20°C; 0.166667 - 0.25 h; 2: 2-fluoro-1-nitrobenzene in tetrahydrofuran 4.5 h; Heating / reflux;

hydrogen; palladium 10 on activated carbon in ethanol T=20°C;