bis(acetylacetonate)nickel(II) in neat (no solvent) T=200°C; 0.5 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

1: 1.) Cu(II)acetate, 2.) 2N H2SO4 / 1.) 3h, RT, 2.) ether, 1.5 h 2: neat (no solvent) / 0.33 h / 200 °C View Scheme

in neat (no solvent) T=200°C; 0.333333 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;