1: 2,3-Dihydro-1,4-benzodioxin-2-carbonitrile With hydrogenchloride; sodium methylate in methanol T=20°C; 4 h; 2: ethylenediamine With hydrogenchloride in methanol T=0 - 10°C; 20 h;

1: HCl / diethyl ether 2: 2.) HCl View Scheme

1: K2CO3 / acetone 2: HCl / diethyl ether 3: 2.) HCl View Scheme

hydrogenchloride Yield given. Multistep reaction;