acetic anhydride in pyridine

1: With manganese; NiCl2((PPh3)P)2; tetraethylammonium iodide; triphenylphosphine in 1,3-dimethyl-imidazolidin-2-one T=25°C; P=760.051 Torr; 20 h; 2: With hydrogenchloride; water in diethyl ether T=20°C; 0.166667 h;