1: With n-butyl-magnesium chloride in tetrahydrofuran T=20°C; 12 h; Inert atmosphere; 2: With hydrogenchloride in tetrahydrofuran; water T=70°C; 0.166667 h;

1: With n-butyllithium in tetrahydrofuran T=55°C; 1 h; Inert atmosphere; 2: With hydrogenchloride in tetrahydrofuran; water T=70°C; 0.166667 h;