Selective catalytic hydrogenations and hydrogenolyses VIII [1]: Stereoselective synthesis of the stereomeric pilopyl alcohols
The stereoselective synthesis of pilopyl- and isopilopyl alcohol is reported. The reaction of dimethyldioxanone and diethoxyphosphoryl-butyric acid ethyl ester afforded the corresponding dioxanylidenbutyric acid ester as the key intermediate. Upon treatme