(E)-7-(tert-Butyl-dimethyl-silanyloxy)-2-triethylsilanyloxy-hepta-1,3-diene 、
乙醛 在
palladium diacetate 、 tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)ytterbium 作用下,
生成
6-[3-(tert-Butyl-dimethyl-silanyloxy)-propyl]-2-methyl-2,3-dihydro-pyran-4-one