1: N-(3,4-dichlorophenyl)-2-cyanoacetamide With sodium hydride in tetrahydrofuran T=20°C; 2: acetyl chloride in tetrahydrofuran T=20°C;

1.1: DIC / tetrahydrofuran / 20 °C 2.1: NaH / tetrahydrofuran / 20 °C 2.2: tetrahydrofuran / 20 °C View Scheme