copper diacetate; manganese triacetate in acetic acid T=25°C; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

copper diacetate; manganese triacetate in acetic acid Yield given. Yields of byproduct given;

1: 1) LDA, 2) HMPA / 1) THF, 0 deg C, 20 min, 2a) 0 deg C, 0.5 h, b) 25 deg C, 2 h 2: 35 percent / anhydrous Mn(OAc)3, ethanol / 25 °C View Scheme