1: oxalyl dichloride; N,N-dimethyl-formamide / dichloromethane / 0 °C 2: triethylamine; 4-(N,N-dimethlyamino)pyridine / 1.5 h / 0 °C 3: hydrazinium monoacetate / N,N-dimethyl-formamide / 1 h / 20 °C View Scheme

1: triethylamine; 4-(N,N-dimethlyamino)pyridine / 1.5 h / 0 °C 2: hydrazinium monoacetate / N,N-dimethyl-formamide / 1 h / 20 °C View Scheme

hydrolysis by various reaction conditions to various product; Product distribution;

hydrolysis by various reaction conditions to various product; Product distribution;

hydrolysis by various reaction conditions to various product; Product distribution;