1: 3-methyl-2-butenoic acid With cyclohexyl(iPr)NLi in tetrahydrofuran T=0°C; 0.5 h; 2: (R)-phenylethylene oxide With lithium chloride in tetrahydrofuran T=20°C; 16 h; Further stages.;

1: 3-methyl-2-butenoic acid With cyclohexyl(iPr)NLi in tetrahydrofuran T=0°C; 0.5 h; 2: (R)-phenylethylene oxide With lithium chloride in tetrahydrofuran T=0°C; 16 h; Further stages.;