1: LAH / tetrahydrofuran / 0 - 20 °C 2: (COCl)2; DMSO; NEt3 / CH2Cl2 / -78 - 20 °C View Scheme

lithium aluminium tetrahydride in tetrahydrofuran

1: 2-dibenzylamino-propionic acid methyl ester With isopropylmagnesium chloride; O,N-dimethyl-hydroxylamine hydrochloride in tetrahydrofuran -5 deg C, 1 h, 20 deg C, 2h; 2: ethyl magnesium chloride in tetrahydrofuran T=0 - 20°C; 3 h;