苯甲醛 、 Acetic acid 1-[1-((1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyloxy)-meth-(Z)-ylidene]-2-trimethylsilanyloxy-allyl ester 在
tris{3-(heptafluoropropylhydroxymethylene)-camphorato}europium(III) 、
三乙胺 作用下,
生成
Acetic acid (2R,3S,6S)-2-((1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyloxy)-4-oxo-6-phenyl-tetrahydro-pyran-3-yl ester 、 Acetic acid (2S,3R,6R)-2-((1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyloxy)-4-oxo-6-phenyl-tetrahydro-pyran-3-yl ester