triphenylphosphine; diethylazodicarboxylate in tetrahydrofuran T=20°C; 23 h;

1: in tetrahydrofuran Industry scale; 2: With acetic acid; hydrazine in tetrahydrofuran T=25 - 67°C; Industry scale; Product distribution / selectivity;

1: With triphenylphosphine; diethylazodicarboxylate in tetrahydrofuran T=20°C; 23 h; 2: With hydrogenchloride; water in tetrahydrofuran T=20°C; 4 h; 3: With sodium hydroxide in tetrahydrofuran; water pH=11; Product distribution / selectivity;