1: C28H25Cl2N3NiO4 With acetic anhydride; sodium carbonate in acetonitrile T=25 - 70°C; 2: benzylamine With sodium hydroxide in acetonitrile T=50°C; Michael condensation; 3 h; 3: With hydrogenchloride; water in ethanol

1: C30H31N3NiO4 With acetic anhydride; sodium carbonate in acetonitrile T=25 - 70°C; 2: benzylamine With sodium hydroxide in acetonitrile T=50°C; Michael condensation; 2.5 h; 3: With hydrogenchloride; water in ethanol

1: C28H26ClN3NiO4 With acetic anhydride; sodium carbonate in acetonitrile T=25 - 70°C; 2: benzylamine With sodium hydroxide in acetonitrile T=50°C; Michael condensation; 0.25 h; 3: With hydrogenchloride; water in ethanol

1: C28H26FN3NiO4 With acetic anhydride; sodium carbonate in acetonitrile T=25 - 70°C; 2: benzylamine With sodium hydroxide in acetonitrile T=50°C; Michael condensation; 1.66667 h; 3: With hydrogenchloride; water in ethanol

Yield given. Multistep reaction;