Darko-KBG in 1-methyl-pyrrolidin-2-one T=50°C; P=3102.97 Torr; 1 h; Product distribution / selectivity;

1: With formic acid; Sn(II) (2-ethylhexanoate)2; acetic acid 24 h; 2: With hydrogenchloride; water

1: stannous oxide in acetic acid T=20 - 65°C; Inert atmosphere; 2: MPCL in formic acid; acetic acid T=60 - 65°C; 18 h; Inert atmosphere; 3: With hydrogenchloride; water T=20 - 95°C; Inert atmosphere; Product distribution / selectivity;