1: n-dipropylamine With ethylmagnesium bromide in tetrahydrofuran; diethyl ether T=30°C; 1 h; 2: 3-Methylbenzonitrile With ethylmagnesium bromide in tetrahydrofuran; diethyl ether T=30°C; 1 h; 3: With hydrogenchloride in tetrahydrofuran; diethyl ether; dichloromethane T=22°C;