1: diethoxyphosphoryl-acetic acid ethyl ester With 1,8-diazabicyclo[5.4.0]undec-7-ene; lithium chloride in acetonitrile T=0°C; 0.5 h; 2: 2-methyl-cyclohexanone in acetonitrile T=0 - 20°C; optical yield given as percent de;

Yield given. Yields of byproduct given;