1: 2-hydroxy-2-methyl-propionitrile With (-)-(R,R)-TADDOL; zirconium tetra-t-butoxide in dichloromethane T=20°C; Complexation; 1 h; 2: furfural in dichloromethane T=-40°C; Addition; Meerwein-Ponndorf-Verley cyanation; 18 h; Title compound not separated from byproducts;